OOP Complete Notes

7/25/2019 OOP Complete Notes

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OOP COMPLETE NOTEBY

Umer Tanvir


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CSC241:

Object OrientedProgrammingSpring 21!

1" Starting OOP

Please turn OFF your Mobile Phones!

1#2$#1%.ar+an &adi,


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St)d- &((ignment

' +ope -o) did go t+ro)g+ c+apter 1 o* bot+ t+e 0o a( t+e eperience3

+at did -o) ,earn3

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og-


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Proced)ra, v(" Object5Oriented

Proced)ra,

it+dra6 depo(it6 tran(*er

Object Oriented

C)(tomer6 mone-6 acco)nt



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Object5Orientation7OO8

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- $


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+at i( Object5Orientation3

& tec+ni9)e *or (-(tem modeling

OO modelcon(i(t( o* (evera, interacting object(

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- %


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+at i( a Mode,3

& mode, i( an ab(traction o* (omet+ing

P)rpo(e i( to )nder(tand t+e prod)ct be*ore devit

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- :


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Eamp,e( ; Mode,

0ig+a- map(

&rc+itect)ra, mode,(

Mec+anica, mode,(

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- Eamp,e ; OO Mode,

Object( &,i

0o)(e

Car

Tree

'nteraction( &,i ,ive( in t+e +o)(e

&,i drive( t+e car

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- 1

Ali

Car

House

Tree

lives-in

drives


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Object5Orientation 5 &dvantage

Peop,e t+in/ in term( o* object(

OO mode,( map to rea,it-

T+ere*ore6 OO mode,( are ea(- to deve,op

ea(- to )nder(tand



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+at i( an Object3

&n object i(

Somet+ing tangib,e 7&,i6 Car8

Somet+ing t+at can be appre+ended inte,,ect)a,7Time6 ?ate8



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> +at i( an Object3

&n object +a(

State 7attrib)te(8

e,,5de@ned be+avio)r 7operation(8

Uni9)e identit-

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- 1!


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Eamp,e ; &,i i( a Tangib,e Object

State 7attrib)te(8 Name

&ge

be+avio)r 7operation(8 a,/(

Eat( 'dentit-

0i( name



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Eamp,e ; Car i( a Tangib,e Object

State 7attrib)te(85 Co,or5 Mode,

be+avio)r 7operation(85 Start Car

- &cce,erate5 C+ange Aear

'dentit-5 't( regi(tration n)mber

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- 1$


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Eamp,e ; Time i( an Object&ppre+ended 'nte,,ect)a,,-

State 7attrib)te(85 0o)r( 5 Second(5 Min)te(

be+avio)r 7operation(85 Set 0o)r( 5 Set Second(5 Set Min)te(

'dentit-5 o),d +ave a )ni9)e '? in t+e mode,

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- 1%


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Eamp,e ; ?ate i( an Object&ppre+ended 'nte,,ect)a,,-

State 7attrib)te(8-Year 5 ?a-- Mont+

be+avio)r 7operation(85 Set Year 5 Set ?a-

5 Set Mont+ 'dentit-

5 o),d +ave a )ni9)e '? in t+e mode,

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- 1:


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?e@nition

What Is an Object? &n object i( a (o*tare b)nd,e o* re,ated variab,e

met+od(" So*tare object( are o*ten )(ed to moor,d object( -o) @nd in ever-da- ,i*e"

Object( are /e- to )nder(tanding object-oriented

tec+no,og-" Yo) can ,oo/ aro)nd -o) no and (eeamp,e( o* rea,5or,d object( dog6 de(/6 te,evi(et6 bic-c,e"



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ea,5or,d object( (+are toc+aracteri(tic(

T+e- a,, +ave stateand behavior dog( +ave (tate 7name6 co,or6 breed6 +)ngr-8 an

be+avior 7bar/ing6 *etc+ing6 and agging tai,8"

Bic-c,e( +ave (tate 7c)rrent gear6 c)rrent peda,cadence6 to +ee,(6 n)mber o* gear(8 and be+

7bra/ing6 acce,erating6 (,oing don6 c+anging g



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So*tare object( are mode,ed a*teror,d object(

& (o*tare object maintain( it( (tate in one or mvariables"

& (o*tare object imp,ement( it( be+avior it+ m" & met+od i( a *)nction 7()bro)tine8 a((ociated object"



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Can repre(ent rea,5or,d object( b-)(ing (o*tare object("

Yo) mig+t ant to repre(ent rea,5or,d dog( a( (object( in an animation program or a rea,5or,d a( a (o*tare object in t+e program t+at contro,(e,ectronic eerci(e bi/e"

Yo) can a,(o )(e (o*tare object( to mode, ab(trconcept(" .or eamp,e6 an eventi( a common ob)(ed in AU' indo (-(tem( to repre(ent t+e ac)(er pre((ing a mo)(e b)tton or a /e- on t+e /e



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Moving to ne t+in/ing >

C i( a proced)ra, ,ang)age" & proced)re i(a ,i(t o* in(tr)ction(" Der- (ma,, program( 7ten( o* ,ine(8 need no

organiation"

&( t+e- get ,arge 7+)ndred( o* ,ine(86 t+e- aredivided into *)nction("

.)nction( are (ti,, ,i(t( o* in(tr)ction("

?ividing a program into *)nction( give( a(tr)ct)re to t+e program 7+ence (tr)ct)redprogramming8"



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C programming cannot do t+e *o,,oing e, .)nction( +ave )nre(tricted acce(( to g,oba, dat

?ata and .)nction( are )nre,atedF t+e- do not*orm a ,ogica, gro)p or (+o an- *orm o* binding

Cannot mode, Grea, or,dH"

'n rea, or,d6 e dea, it+ object( ,i/e car(6

peop,e etc" &re ()c+ object( ,i/e GdataH3 +ic+ data t-pe

de(cribe( a car6 *or eamp,e3

&re ()c+ object( ,i/e G*)nction(H3 +at i,, a*)nction car78 do3



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& rea, or,d object6 e"g" car '( it( de(cription p)re,- t+e abi,it- to +ave a

Gdata t-peH to repre(ent it( (peci@cation( orGattrib)te(H on,-3 .or eamp,e +at attrib)te(de(cribe a car3

So b- +aving a,, t+e(e attrib)te( Gon,-H do -o)/no a,, abo)t a car3 o),d -o) b)- a car b-

mere,- ,oo/ing at t+e(e attrib)te( and t+eirva,)e(3

NoI +at e,(e do -o) i(+ to +ave3



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& rea, or,d object6 e"g" carTe(t driveI ig+t3

+at o),d -o) /no t+ro)g+ a te(t drive +oit Gbe+ave(H in re(pon(e to vario)( (tim),)(I

0o can it negotiate a (peed bra/er6 a (peed- t)rn*),, bra/ing etc"

EJective,-6 -o) i(+ to /no +o it G*)nction(

Be+avio)r i( ,i/e a *)nction" So neit+er data nor *)nction(6 b-

t+em(e,ve(6 mode, rea,5or,d object(eJective,-"



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Object Oriented &pproac+ Neit+er data nor *)nction(6 b- t+em(e,ve(6 mode,

rea,5or,d object( eJective,-"

OO ,ang)age( 7,i/e CKK8 combine bot+ GdataH andG*)nction( t+at operate on t+at dataH into a (ing,e)nit6 ca,,ed GobjectH" 0ence Gencap(),atingH an entit

T+e object( *)nction( are ca,,ed member *)nction("

T-pica,,-6 data can be acce((ed t+ro)g+ *)nction(on,-" So data get( G+iddenH"

?ata +iding en()re( t+e data i( not accidenta,,-a,tered"

e*erence ana,og- o* a groing compan-F 2 peop,ev( 1 emp,o-ee compan-"

Object( comm)nicate it+ eac+ ot+er b- ca,,ingeac+ ot+erH( member *)nction("



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Object Oriented &pproac+ > OOP i( a,, abo)t GorganiationH and not abo)t

program operation" Mo(t individ)a,

(tatement( are (imi,ar to C (tatement("Member *)nction( ma- be ver- (imi,ar to Cproced)ra, *)nction("

'n C -o) )(ed to t+in/ abo)t *)nction("

'n CKK -o) (+o),d t+in/ abo)t object("

O*ten object( in CKK are rea,5or,d ana,ogie 'n CKK object( are Gin(tance(H o* Gc,a((e(H"

E"g" 0onda Cit- i( an in(tance o* c,a(( carI

C,a(( (erve( a( a coo/ie c)tter and an objeca coo/ie"



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&b(traction

&b(traction i( a a- to cope it+ comp,eit-"

Princip,e o* ab(traction

Capt)re on,- t+o(e detai,( abo)t an object t+are,evant to c)rrent per(pective


Nat)ra,Set>

add7 e,em 8>

add7 e,em 8>

adde,ement tot+e (et

'* e,em 1

t+en errore,(e

adde,ement tot+e (et

Overriding


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Overriding

& c,a(( ma- need to override t+e de*a),t be+avioprovided b- it( ba(e c,a((

ea(on( *or overriding Provide be+avio)r (peci@c to a derived c,a(( Etend t+e de*a),t be+avio)r e(trict t+e de*a),t be+avio)r 'mprove per*ormance

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- :!

Eamp,e ; Speci@c Be+avio)r


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Eamp,e Speci@c Be+avio)r

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- :4

Shapeco,orvertice(

dramove(etCo,or

Circ,eradi)(dracomp)te&rea

Line,engt+dra

Triang,eang,e

dracomp)te&r

Eamp,e ; Eten(ion


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p

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- :$

indoidt+

+eig+topenc,o(edra

?ia,ogBocontro,(enab,edra

15 'nvo/eindoH(dra25 dra t+edia,og bo

Eamp,e ; e(triction


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p

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- :%

IntegerSet>

Nat)ra,Set>

add7 e,em 8>

add7 e,em 8>

&dd e,ementto t+e (et

'* e,em 1

t+en give errore,(e

&dd e,ementto t+e (et

Eamp,e ; 'mprove Per*ormance


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C,a(( Circ,eoverride( rotateoperation o* c,a((S+ape it+ a N),,operation"

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- ::

Shapeco,or

coorddrarotate(etCo,or

Circ,eradi)(drarotate


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Eamp,e ; &b(tract C,a((e(


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p

0ere6 Per(on i( an ab(tract c,a((1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- :=

Teac+er?octorSt)dent

Personname

agegendereata,/

Eamp,e ; &b(tract C,a((e(


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p

0ere6 De+ic,e i( an ab(tract c,a((1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og-


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& concrete c,a(( imp,ement( a concrete concept

Main p)rpo(e i( to be in(tantiated

Provide( imp,ementation detai,( (peci@c to t+e d

contet



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0ere6 St)dent6 Teac+er and ?octor areconcrete c,a((e(1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og-


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M),tip,e 'n+eritance


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e ma- ant to re)(e c+aracteri(tic( o* more t+parent c,a((



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Prob,em ; ?)p,icate .eat)re(


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+ic+ eatoperation Mermaidin+erit(3

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- =

Mermaid

oman .i(+

eat>

eat>

So,)tion ; Override t+e Common.eat)re


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1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- =1

Mermaid

oman .i(+eat>

eat>

eat>

'nvo/e eatoperation ode(iredc,a((

Prob,em ; ?)p,icate .eat)re( 7?iamond Prob,em


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+ic+ changeGearoperation &mp+ibio)(De+ic,e in+erit(3

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- =2

&mp+ibio)( De+ic,e

Land De+ic,e ater De+ic,e

De+ic,e

Car Boat

c+angeAear


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ind( o* &((ociation


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C,a(( &((ociation

'n+eritance

Object &((ociation Simp,e &((ociation

Compo(ition

&ggregation

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- =$

Simp,e &((ociation


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'( t+e ea/e(t ,in/ beteen object(

'( a re*erence b- +ic+ one object can interact (ome ot+er object

'( (imp,- ca,,ed a( a((ociation

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- =%

ind( o* Simp,e &((ociation


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"r"t navigation

One5a- &((ociationTo5a- &((ociation

"r"t n)mber o* object( Binar- &((ociation

Ternar- &((ociation N5ar- &((ociation

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- =:

One5a- &((ociation


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e can navigate a,ong a (ing,e direction on,-

?enoted b- an arro toard( t+e (erver object

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- =


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Eamp,e ; &((ociation


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&,i drive( +i( Car


&,i Cardrive(1


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Eamp,e ; To5a- &((ociation


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Emp,o-ee or/( *or compan-

Compan- emp,o-( emp,o-ee(


Emp,o-ee Compan-or/(5*or 1


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Binar- &((ociation


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&((ociate( object( o* eact,- to c,a((e(

?enoted b- a ,ine6 or an arro beteen t+e a((oobject(



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Ternar- &((ociation


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&((ociate( object( o* eact,- t+ree c,a((e(

?enoted b- a diamond it+ ,ine( connected toa((ociated object(

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- 1:

Eamp,e ; Ternar- &((ociation


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Object( o* eact,- t+ree c,a((e( area((ociated

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- 1(tr)ct TEST

W

private

int F

(tr)ct TEST

W

private


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F

p)b,ic

void Set7int va,8 W va,F XF

int Aet78 W ret)rn F XF

X

TEST varF

var"Set718F

int - var"Aet78F

1#2$#1%Nationa, Univer(it- o* Comp)ter and Emerging

Science(

p

int FX

TEST varF

var" 1F ##e

int - var"F ##e

So even ,egitimate acce(( o* data goe( t+ro)g+ inter*aceI e +ave (ec)red t+e data *)rt+erIII

Member *)nction( de@nitionstructTEST W

private

int F

p)b,ic

void Set7int va,8F

int Aet78F

e can dec,aremember *)nction(in(ide t+e (tr)ct an


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Science(

78F

Xvoid +,-+::Set7int va,8 W

va,F

X

int +,-+::Aet78 W

ret)rn F

X

main78 W

TEST varF

var"Set718F

int - var"Aet78F

X

de@ne t+em o)t(ida( e,, )(ing t+ename o* (tr)ct tore(o,ve ambig)it-"

D" 'MP Note t+at t+a,,o( )( to (epara+eader andimp,ementation @,e

C,a(( Compatibi,it-

& c,a(( i( be+aviora,,- compatib,e it+ anot+er i()pport( a,, t+e operation( o* t+e ot+er c,a((


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S)c+ a c,a(( i( ca,,ed ()bt-pe

& c,a(( can be rep,aced b- it( ()bt-pe

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1%%

>C,a(( Compatibi,it-

?erived c,a(( i( )()a,,- a ()bt-pe o* t+e ba(e c,a


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't can +and,e a,, t+e ,ega, me((age( 7operation(8ba(e c,a((

T+ere*ore6 ba(e c,a(( can alwaysbe rep,aced b-derived c,a((

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1%:

Eamp,e ; C,a(( Compatibi,it-Shape

color

vertices

move


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1%'denti*- C,a((e(

E,iminate irre,evant c,a((e(


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Editor ; Der- broad (cope

U(er ; O)t o* (-(tem bo)ndar-

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1'denti*- C,a((e(

&dd c,a((e( b- ana,-ing re9)irement(


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Aro)p ; re9)ired to be+ave a( a (+ape 'ndivid)a, (+ape( can be gro)ped toget+er and can

a( a (ing,e (+ape

Die ; editor m)(t +ave a di(p,a- area

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1'denti*- C,a((e(

S+ape

Following classes have &een identi'ied(


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Line

Circ,e

Triang,e

Men)

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1


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Line

Circle

Triangle

"iew

)enu

'denti*- &((ociation(

Etract verb( connecting object(

di id , + b d +


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'ndivid)a, (+ape( can be gro)ped toget+er Aro)p con(i(t( o* ,ine(6 circ,e(6 triang,e(

Aro)p can a,(o con(i(t( o* ot+er gro)p(7Compo(ition8

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1 'denti*- &((ociation(

Deri*- acce(( pat+(

Di i +


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Die contain( (+ape( Die contain( ,ine(

Die contain( circ,e(

Die contain( triang,e(

Die contain( gro)p(

7&ggregation8

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1 'denti*- &((ociation(

Deri*- acce(( pat+(

M d t Di


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Men) (end( me((age to Die7Simp,e One5a- &((ociation8



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Propertie( are not mentioned

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1'denti*- &ttrib)te(Etract propertie( o* t+e object

.rom t+e domain /no,edge

Li

T i l


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1'denti*- &ttrib)te(Etract propertie( o* t+e object

.rom t+e domain /no,edge

%roup

)enu


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1=

%roupno+'+&,ects "iew

no+'+&,ects

selected

)enuameis+pen

Object Mode, ; Arap+ic Editor

)enu

nameis+pen

"iew

no+'+&,ectsselected

Shape

colorverticesnn


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1=1

Line

length

Circle

radius%roup

no+'+&,ects

Triangle

angle

n

nn

n

nn

n

n

n n

nn

nn

n

'denti*- Operation(Etract verb( connected it+ an object

!evelopa graphic editor that can draw

di''erent geometric shapes such as line


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di''erent geometric shapes such as line.circle and triangle/ 0ser can select. move

or rotatea shape/ To do so. editor provid

user with a menu listing di''erent

commands/ Individual shapes can &egroupedtogether and can &ehaveas a

single shape/

> 'denti*- Operation(E,iminate irre,evant operation(

?eve,op o)t o* (-(tem bo)ndar-


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?eve,op ; o)t o* (-(tem bo)ndar-

Be+ave ; +ave broad (emantic(

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1=!

>'denti*- Operation(.o,,oing are (e,ected operation(

Line

Circle


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Line!rawSelect

)ove

*otate

Circle!rawSelect

)ove

*otate


Triangle!

Shape!


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1=$

Triangle!rawSelect

)ove

*otate

Shape!rawSelect

)ove

*otate


%roup

!raw

)enu

+pen


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1=%

!rawSelect

)ove

*otate

+penSelect

)ove

*otate

>'denti*- Operation(Etract operation( )(ing domain

/no,edge

"iew


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1=:

"iewAdd

*emove

%roup

Show

Select

)ove

*otate

Shap

colorvertic

drawselecmoverotate

"iewno+'+&,ectsselected

add12remove12group12show12

select12move12

nn

)enu

nameis+pen

open12select12move12rotate12


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%rou

no+'+&

draw12

Triangle

angle

draw12

nnCircle

radius

draw12nn

Line

length

draw12

nn

nn

12move12rotate12

nn

nnnn

12

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 1='denti*- 'n+eritance

B- ana,-ing re9)irement(


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3'ndivid)a, (+ape( can be gro)ped toget+er and be+ave a( a (ing,e (+ape4

Aro)p in+erit( *rom S+ape


e@ning t+e Object Mode, &pp,ication o* in+eritance demand( an iteration

+o,e object mode,

'n t+e in+eritance +ierarc+


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'n t+e in+eritance +ierarc+-6 &,, attrib)te( are (+ared

&,, a((ociation( are (+ared

Some operation( are (+ared

Ot+er( are overridden


>e@ning t+e Object Mode,

S+are a((ociation(


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Die contain( a,, /ind o* (+ape(

Aro)p con(i(t( o* a,, /ind o* (+ape(



S+are attrib)te(


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S+ape ; Line6 Circ,e6 Triang,e and Aro)p Co,or6 vertice(

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 2!


S+are operation(


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S+ape ; Line6 Circ,e6 Triang,e and Aro)p Se,ect

Move

otate



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206/635

C,a(( C,a(( i( a too, to rea,ie object(

C,a(( i( a too, *or de@ning a ne t-pe


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208/635


209/635


210/635

&b(traction On,- inc,)de detai,( in t+e (-(tem t+at are re9)i

ma/ing a *)nctiona, (-(tem

St)dent Name

.ele&ant to our problem


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&ddre((

Sib,ing

.at+er B)(ine((


/ot rele&ant to our problem


212/635


213/635

+- Member .)nctionT+e- mode, t+e be+avior( o* an object

Object( can ma/e t+eir data invi(ib,e

Object remain( in con(i(tent (tate


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 21$


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216/635

?ec,aring c,a(( variab,e( Dariab,e( o* c,a((e( 7object(8 are dec,ared j)(t ,i/

variab,e( o* (tr)ct)re( and b)i,t5in data t-pe(

T-peName Daraiba,eNameF


217/635

-p

int varF

St)dent aSt)dentF



218/635

Eamp,eclass Student{

int rollNo;

!oid setRollNo"int

aNo$;};


219/635

};

Student aStudent;

aStudent%rollNo;


Error

(tr)ct 5Z c,a(( tran(itionIclassTEST Wprivate

int F

p)b,ic

void Set7int va,8 W va,F XF

structTEST W

private

int F

p)b,ic

void Set7int va,8 W

va,F XFint Aet78 W ret)rn F XF


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int Aet78 W ret)rn F X

X

main78 W

TEST varF

var"Set718Fint - var"Aet78F

X1#2$#1%

Nationa, Univer(it- o* Comp)ter and EmergingScience(

X

main78 W

TEST varF

var"Set718F

int - var"Aet78FX

ep,acing struct withclass6 doe( not +ave an- aJectI

T+i( i( t+e /e-ord t+at OOL 7CKK8 provide *or OOPI


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222/635

&cce(( (peci@er(


223/635

&cce(( (peci@er(


&cce(( (peci@er(T+ere are t+ree acce(( (peci@er(

Gp)b,icH i( )(ed to te,, t+at member can be acce((ed -o) +ave acce(( to t+e object

GprivateH i( )(ed to te,, t+at member can on,- be acce*rom a member *)nction


224/635

GprotectedH to be di(c)((ed +en e cover in+eritanc

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 22$


pri!ate&

char * name;

int rollNo;

'annot (e accessed outside c)ass


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pu'lic&

!oid setName"char *$;

!oid setRollNo"int$;

%%%};

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 22%

'an (e

accessed

outside c)ass


%%%

int rollNo;

pu'lic&!oid setRollNo"int aNo$;


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!oid setRollNo"int aNo$;

};

int main"${

Student aStudent;

aStudent%SetRollNo"($;}

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 22:


227/635

Eamp,eclass Student

{

char * name;

int RollNo;

class Student

{

pri!ate&

char * name;


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};;

int RollNo;

};

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 22=

Eamp,eclass Student

{

char * name;

int RollNo;


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!oid SetName"char *$;

};

Student aStudent;

aStudent%SetName"li$;

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 2!

Error

Eamp,eclass Student

{

char * name;

int RollNo;pu'lic&


230/635

p

!oid setName"char *$;

};

Student aStudent;

aStudent%SetName")li$;

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 2!1

Uni@ed Mode,ing Lang)age 7UML8 c,a((diagram

10..*

abstract

association

13using42


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Science(

privateinheritance

13is a42

&((ignment 7CP8 'n(ta,, 'BM ationa, o(e or anot+er UML too, a

dra t+e diagram( )(ed in t+i( ,ect)re and ta/e o)t o* t+o(e diagram( to (+o me +at -o) +av

?ead,ine net c,a((


232/635

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og-


233/635

T+an/(


234/635



235/635

evie C,a((

Concept

?e@nition

?ata member( Member .)nction(


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Member .)nction(

&cce(( (peci@er

Member .)nction( Member *)nction( are t+e *)nction( t+at operate

data encap(),ated in t+e c,a((

P)b,ic member *)nction( are t+e inter*ace to t+e


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Member .)nction( 7contd"8 ?e@ne member *)nction in(ide t+e c,a(( de@nitio

O

?e@ne member *)nction o)t(ide t+e c,a(( de@nit B)t t+e- m)(t be dec,ared in(ide c,a(( de@nition


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.)nction 'n(ide C,a(( Bod-class ClassName {

pu'lic&ReturnType FunctionName"$ {


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ReturnType FunctionName"$ {

}};

Eamp,e?e@ne a c,a(( o* (t)dentt+at +a( a ro,, n)mber" T+i(c,a(( (+o),d +ave a* ti t+ t b d


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*)nction t+at can be )(edto (et t+e ro,, n)mber


int rollNo;

pu'lic&!oid setRollNo"int aRollNo${


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rollNo + aRollNo;

}

};

.)nction O)t(ide C,a(( Bod-class ClassName{

pu'lic&

ReturnTypeFunctionName"$;

};


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}

ReturnTypeClassName&&FunctionName"$

{

}

Scoperesolution

operator


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Eamp,einline int rea"int len, int hi$

{

return len * hi;

}

int main"$


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int main"$

{

cout -- rea"(.,/.$;

}

'n,ine .)nction( '* e de@ne t+e *)nction in(ide t+e c,a(( bod- t+

*)nction i( b- de*a),t an in,ine *)nction

'n ca(e *)nction i( de@ned o)t(ide t+e c,a(( bod-

e m)(t )(e t+e /e-ord Gin,ineH to ma/e a *)ncin,ine


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int rollNo;

pu'lic&

!oid setRollNo"int aRollNo${


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rollNo + aRollNo;

}

};


pu'lic&

inline !oid setRollNo"int aRollNo$;

};


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};

!oid Student&&setRollNo"int aRollNo${

rollNo + aRollNo;

}


pu'lic&

!oid setRollNo"int aRollNo$;};


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inline !oid Student&&setRollNo"int aRollNo${

rollNo + aRollNo;}


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Con(tr)ctor


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Con(tr)ctor Con(tr)ctor i( )(ed to initia,ie t+e object( o* a c

Con(tr)ctor i( )(ed to en()re t+at object i( in ede@ned (tate at t+e time o* creation

Con(tr)ctor i( a)tomatica,,- ca,,ed +en t+e objcreated

Con(tr)ctor are not )()a,,- ca,,ed ep,icit,-


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Con(tr)ctor are not )()a,,- ca,,ed ep,icit,-

Con(tr)ctor 7contd"8 Con(tr)ctor i( a (pecia, *)nction +aving (ame na

t+e c,a(( name

Con(tr)ctor doe( not +ave ret)rn t-pe

Con(tr)ctor( are common,- p)b,ic member(


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pu'lic&

Student"${

rollNo + .;


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}

};

Eamp,eint main"$

{

Student aStudent;

0*constructor is implicitly called at thipoint*0


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}

?e*a),t Con(tr)ctor Con(tr)ctor it+o)t an- arg)ment i( ca,,ed de*a

con(tr)ctor

'* e do not de@ne a de*a),t con(tr)ctor t+e com

i,, generate a de*a),t con(tr)ctorT+i( compi,er generated de*a),t con(tr)ctor initi

t+e data member( to t+eir de*a),t va,)e(


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Eamp,eclass Student

{

int rollNo;

char *name;

float GP;


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pu'lic&

00no constructors

};

Eamp,e

Compi,er generated de*a),t con(tr)cto

{

rollNo + .;GP + .%.;


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name + N122;

}

Con(tr)ctor Over,oading

Con(tr)ctor( can +ave parameter(

T+e(e parameter( are )(ed to initia,ie t+e datamember( it+ )(er ()pp,ied data


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Eamp,e

class Student{

pu'lic&

Student"$;

Student"char * aName$;


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Student"char * aName, int aRollNo$;

Student"int aRollNo, int aRollNo, float a

};

Eamp,e

Student&&Student"int aRollNo,

char * aName${

if"aRollNo - .${

rollNo + .;}

else {


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rollNo + aRollNo;

}

}

Eamp,e

int main"$

{

Student student(;

Student student/")Name$;

Student student3"Name, ($;


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Student student4"Name,(,4%.$;

}

Con(tr)ctor Over,oading

U(e de*a),t parameter va,)e to red)ce t+e ritin


263/635

Eamp,e

Student&&Student" char * aName + N122,

int aRollNo+ .,

float aGP + .%.${

}

'( e9)iva,ent to


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Student"$;


Student"char * aName, int aRollNo$;Student"char * Name, int aRollNo, float aGP$;

e*erence(

Object Oriented Programming in CKK6 b- obert La*ore6 p)b,

Sam( P)b,i(+ing 7T+e aite Aro)p8" 4t+ed" avai,ab,e in (o Object Oriented Programming U(ing CKK b- o-ce .arre,, 6 p)

Co)r(e Tec+no,og-6 Cengage Learning" 4thed. available in soft form

Nationa, Univer(it- o* Comp)ter Emerging ScQ"n)"ed)"p/R


265/635

Dirt)a, Univer(it- o* Pa/i(tan Qoc"v)"ed)"p/R

Open Co)r(eare Con(orti)m

Q+ttp##"occon(orti)m"org#en#co)r(e(R


0o to correct,- Searc+ *or a(o*tare [ goog,e

+en e need a (o*tare6 t+e @r(t p,ace +ere e goi( at Aoog,e Searc+" '* -o) don\t /no t+e (o*tarename6 t+en e )(e (ome /e-ord( at Aoog,e Searc+7*or e"g" Note Ta/ing (o*tare6 Dideo Editing (o*tare6P+oto Editing (o*tare etc8" Once Aoog,e (+o )( t+ere(),t(6 e c,ic/ t+e ,in/( a*ter reading it( tit,e and

(ome de(cription" .o,,oing ()c+ practice o*tena(te( o)r time b- c,ic/ing )(e,e(( ,in/(" +at mo(to* t+e peop,e don\t /no i( t+at6 -o) can ea(i,- (earc+*or t+e (o*tare # app,ication( at Aoog,e Searc+ )(ingit @,t i ti L t\ + d t+ t


266/635

it( @,tering option(" Let\( (ee +o e can do t+at

Con(),t t+e @,e )p,oaded

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 2%:

T+an/(


267/635


CSC241:Object OrientedProgrammingSpring 21!

1" .)nction(


268/635


1#2$#1%.ar+an &adi,

evi(ion

C+apter $ o* boo/


269/635

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 2:

.)nction(

$ 'unctiongroups a number o' programstatements into a unit and gi&es it a name#

+his unit can then be in&o8ed'rom other parts o'the program#

+he most important reason to use 'unctions is toaid in the conceptual organi9ationo' a program

$nother reason to use 'unctions is to reduce


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 2:1

program si9e# $ny seuence o' instructions thatappears in a program more than once is acandidate 'or being made into a 'unction#

+he 'unction;s code is stored in only one placeinmemory< e&en though the 'unction is e0ecuted

Return type


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5nput ar6um1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 2:2

.)nction(00demonstrates a simple function

7include-iostream8usin6namespacestd;

intcu'e"int9$; 00 function deration

intmain"${ 00 tests the cu'e"$ function&

intn + (;

#hile"n :+ .${

cin 88 n;

cout --


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 2:!

system"P1S=$; return.;

}00end of main

intcu'e" int9 ${ 00 function definition

return9*9*9; 00 returns cu'e of 9&} 00 {function 'ody}

Return type

.)nction(

,ach integer read is passed to the cube6*'unction by the

call cube6n*# +he &alue returnedby the 'unction replaces

the e0pression cube6n* and then is passed to the output

object cout

+he main6* 'unction passes the &alue = to the cube6*


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 2:4

+he main6*'unction passes the &alue = to the cube6*

'unction< and the cube6*'unction returns the &alue2>= to

the main6*'unction#

+he argument nis passed by &alueto the 'ormal parameter

0# +his simply means that 0 is assigned the &alue o' nwhen

the 'unction is called#

Default r6uments

7include-iostream8

usin6namespacestd;00declaration #ith default ar6uments

!oidrepchar"char+>*>, int+4?$;

intmain"${

repchar"$; 00prints 4? asteris@s

repchar">+>$; 00prints 4? eAual si6ns

repchar">B>, 3.$; 00prints 3. plus si6ns


}

00 displays line of characters

!oidrepchar"charch, intn${


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 2:$

p " , ${

00 defaults supplied if necessary

for"int +.; -n; BB$ 00 loops n times

cout -- ch; 00 prints ch

cout -- endl;

}

5nline unction

function call in!ol!es su'stantial o!erhead

=9tra time and space ha!e to 'e used to in!o@ethe function, pass parameters to it, allocatestora6e for its local !aria'les, store thecurrent !aria'les and the location of e9ecutioin the main pro6ram, etc%

5n some cases, it is 'etter to a!oid all this

'y specifyin6 the function to 'e inline% Thistells the compiler to replace each call to thefunction #ith e9plicit code for the function%

To the pro6rammer, an inline function appears


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 2:%

p 6 , ppthe same as an ordinary function, e9cept forthe use of the inlinespecifier%

5nline unction

00 demonstrates inline functions

7include-iostream8usin6namespacestd;

inlinefloatl'sto@6"floatpounds${

00 con!erts pounds to @ilo6rams

return.%4?3?E/ * pounds;

}

intmain"${ floatl's;

cout --


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 2::

cout -- Four #ei6ht in @ilo6rams is -- l'sto@6"l's$

-- endl;

return.;

}

Recursion

The e9istence of functions ma@es possi'le pro6rammin6 techniAue called recursion%

Recursion in!ol!es a function callin6itself% This sounds rather impro'a'le, andindeed a function callin6 itself is often

'u6% o#e!er, #hen used correctly this

techniAue can 'e surprisin6ly po#erful% Recursion is much easier to understand #ithan e9ample than #ith len6thy e9planations,so letHs apply it to a pro6ram&


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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- 2:D"imensional $rrays7include-iostream8

usin6namespacestd;

intmain"${ constintro#+3, col+3; int i,;

intaryQro#Qcol + {

{((,(/,(3},

{/(,//,/3},

{3(,3/,33} };

for"i+. ; i- ro# ; iBB${

for"+. ; -col; BB${ cout -- aryQiQ -- ;}

cout -- endl;

}

for"i+. ; i- ro# ; iBB${

for"+. ; -col; BB${

cout -- LaryQiQ -- +--aryQiQ--


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}

3JDimensional rrays

.9//ff3

.9//ff3

.9//ff3

.9//ff3

.9//ff4

.9//ff4

aryQ.Q.+

aryQ.Q(+

aryQ.Q/+

aryQ(Q.+

aryQ(Q(+

aryQ(Q/+

.9//ff4

.9//ff4

.9//ff?

aryQ/Q.+

aryQ/Q(+

666561

565551

161511


360/635

aryQ/Q/+

alculating -uare o' a Matri0

7include-iostream8usin6namespacestd;intmain"${ constintro#+3, col+3; int i,;

intQro#Qcol; cout -- SAuare of a --ro#--9--col--Iatrices--endl;

for"i+. ; i- ro# ; iBB${ for"+. ; -col; BB${ cout -- Q-- iB( -- Q-- B( -- + ; cin 88 QiQ; } } for"i+. ; i- ro# ; iBB$ for"+. ; -col; BB$ QiQ + QiQ*QiQ; for"i+. ; i- ro# ; iBB${ for"+. ; -col; BB$ cout -- QiQ --


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return .;}

Passing >" $rray to Function7include-iostream8usin6namespacestd;!oid6etXdata"floataQQ3,intro#, intcol${

inti,; for"i+.; i-ro#; iBB$ for"+.; -col; BB${ cout -- Q--iB(--Q--B(--&; cin 88 aQiQ;}}!oidsho#Xdata"floataQQ3,intro#, intcol${ inti,; for"i+.; i-ro#; iBB${ for"+.; -col; BB$ {cout -- aQiQ --


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return.;}

Passing E" $rray to Function 625>*

7include-iostream8

usin6namespacestd;

!oid6etXdata"floataQQ3Q/,intro#, intcol,intpa6e${

inti,,@;

for"@+.; @-pa6e; @BB${

for"i+.; i-ro#; iBB${

for"+.; -col; BB${

cout --Q-- i --Q-- --Q-- @ --&;

cin 88 aQiQQ@;

} 00 end of for "+.

} 00 end of for "i+.

} 00 end of for "@+.

}


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}

Passing E" $rray to Function 6>5>*

!oidsho#Xdata"floataQQ3Q/,intro#, intcol, intpa6e${ inti,,@; for"@+.; @-pa6e; @BB${

for"i+.; i-ro#; iBB${ for"+.; -col; BB${ cout -- aQiQQ@ --


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}

-orting "ata Using Cubble -ort $lgo7include-iostream8

usin6namespacestd;

!oidprint" floatQ, int$;

!oidsort " floatQ, int$;

intmain"${

inti; floatdataQ(.;

cout -- =nter (. Num'ers for Sortin6


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-orting "ata Using Cubble -ort $lgo!oidsort" floataQ, intn ${ 00 'u''le sort&

for"inti+(; i-n; iBB$ 00 'u''le up ma9{aQ.%%nJi}&

for"int+.; -nJi; BB$

if"aQ 8 aQB(${

floattemp + aQ;

aQ+aQB(;

aQB( + temp;

}

}

!oidprint" floataQ, intn ${

cout -- Sorted Data is -- endl;

for"inti+.; i-n; iBB$

cout -- aQi -- ;

}


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Using Dstring

7include-iostream8

7include-iomanip%h8

usin6namespacestd;

intmain"${

charstrQ + { >I>,>%>,> >,>>,>l>,>i>,.,> >,

>5>,>5>,>1>,.}; 00 char ch Q + I% li;

intsiOe + siOeof"str$;

cout --


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.eading ,mbedded Clan8s00 'lan@sin%cpp reads strin6 #ith em'edded 'lan@s

7include-iostream8

usin6namespacestd;

intmain"${

constintIY + U.; 00 ma9 characters in strin6

charstrQIY; 00 strin6 !aria'le str

cout --


368/635

return.;}

opying a -tring the ard Way00 strcopy(%cpp

00 copies a strin6 usin6 a for loop

7include-iostream8

7include-cstrin68 00for strlen"$

usin6namespacestd;

intmain"${ 00initialiOed strin6

charstr(Q + Wh, Captain, my Captain:

our fearful trip is done;

constintIY + U.; int ; 00 IY is siOe of str/ 'uff

charstr/QIY; 00empty strin6for" +.; -strlen"str($; BB$ 00copy strlen character

str/Q + str(Q; 00 from str( to str/

str/Q + >; 00insert N122 at end

cout -- str/ -- endl; 00display str/


}


369/635

opying a -tring the ,asy Way

00 strcopy/%cpp

00 copies a strin6 usin6 strcpy"$ function

7include-iostream87include-cstrin68 00for strcpy"$

usin6namespacestd;

intmain"${

charstr(Q + Ti6er, ti6er, 'urnin6 'ri6ht


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}

$rrayof Strin6s00 straray%cpp

00 array of strin6s

7include-iostream8

usin6namespacestd;

intmain"${

constintDFS + ; 00num'er of strin6s in array

constintIY + (.; 00ma9imum siOe of each strin6

00n array of strin6s

charstarQDFSQIY + { Sunday, Ionday, Tuesday,

Mednesday, Thursday, riday , Saturday };for" int+. ; -DFS ; BB$ 00display e!ery strin6

cout -- starQ -- endl;

system"P1S=$;

return.;

}


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$rray o' -trings


372/635

Lab Ta(/

rite a and te(t a program to ca,c),ate ?eterminant and ever(e o* a !! m


373/635

e*erence(

Object Oriented Programming in CKK6 b- obert La*ore6 p)b,Sam( P)b,i(+ing 7T+e aite Aro)p8" 4t+ed" avai,ab,e in (o

Object Oriented Programming U(ing CKK b- o-ce .arre,, 6 p)

Co)r(e Tec+no,og-6 Cengage Learning" 4thed. available in soft form

Nationa, Univer(it- o* Comp)ter Emerging Sc

Q"n)"ed)"p/R Dirt)a, Univer(it- o* Pa/i(tan Qoc"v)"ed)"p/R

Open Co)r(eare Con(orti)mQ+ttp##"occon(orti)m"org#en#co)r(e(R


374/635


T+an/(


375/635


CSC241:

Object OrientedProgrammingSpring 21!

1"Compo(ition2"&ggregation

!".riend .)nction(

Pl t OFF M bil Ph !

1#2$#1%.ar+an &adi,


376/635


Pointer to Object(

Pointer to object( are (imi,ar a( pointer to b)i,t5iT+e- can a,(o be )(ed to d-namica,,- a,,ocate o


377/635

Eamp,e

class Student{

pu'lic&

Studen"$;


!oid setRollNo"int aNo$;

};


378/635

Eamp,e 766re6ation$

int main"${

Student o';

Student *ptr;

ptr + Lo';

ptrJ8setRollNo"(.$;return .;

}


379/635

&,,ocation it+ ne Operator

ne operator can be )(ed to create object( at r)


380/635

Eamp,e

int main"${Student *ptr;

ptr + ne# Student;

ptrJ8setRollNo"(.$;

return .;}


381/635

Eamp,e

int main"${Student *ptr;

ptr + ne# Student")li$;

ptrJ8setRollNo"(.$;

return .;}


382/635

Brea/)p o* ne Operation

ne operator i( decompo(ed a( *o,,o( &,,ocating (pace in memor-

Ca,,ing t+e appropriate con(tr)ctor


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Ca(e St)d-

?e(ign a c,a(( date t+ro)g+ +ic+ )(er m)(t be aper*orm *o,,oing operation(

Aet and (et c)rrent da-6 mont+ and -ear

'ncrement b- n)mber o* da-(6 mont+( and -ear

Set de*a),t date


384/635


385/635

&ttrib)te(

T+e de*a),t date i( a *eat)re (+ared b- a,, objectT+i( attrib)te m)(t be dec,ared a (tatic member


386/635

&ttrib)te( in ?ate"+

class Date{

int day;

int month;

int year;static Date defaultDate;

};


387/635

'nter*ace(

get?a-

getMont+

getYear

(et?a-

(etMont+

(etYear

add?a-

addMont+

addYear

(et?e*a),t?ate


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'nter*ace(

&( t+e de*a),t date i( a (tatic member t+e inter*(et?e*a),t?ate (+o),d a,(o be dec,ared (tatic


389/635

'nter*ace( in ?ate"+

class Date{

pu'lic&

!oid setDay"int aDay$;

int 6etDay"$ const;

!oid addDay"int 9$;

};


390/635

'nter*ace( in ?ate"+

class Date{

pu'lic&

static !oid setDefaultDate"

int aDay,int aIonth, int aFear$;

XF


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Con(tr)ctor( and ?e(tr)ctor( in ?a

Date"int aDay + .,int aIonth+ ., int aFear+ .$;

Date"$; 00Destructor

};


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'mp,ementation o* ?ate C,a((

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"ate "ate::de'ault"ate 63G


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Con(tr)ctor(

"ate::"ate6int a"ay< int aMonthXF


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Member access inBase Class erive! Class

u&lic rotected

rotected rotected

rivate Hidden

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Member access in

Base Class erive! Class

u&lic rivate

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'* t+e )(er doe( not (peci@e( t+e t-pe o* in+erita


519/635

'* t+e )(er doe( not (peci@e( t+e t-pe o* in+eritat+en t+e de*a),t t-pe i( private in+eritance

c,a(( C+i,d privateParent W>X

i( e9)iva,ent to

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1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- $22

Private 'n+eritance

e )(e private in+eritance +en e ant to re)


520/635

e )(e private in+eritance +en e ant to re)o* (ome c,a((

Private 'n+eritance i( )(ed to mode, 'mp,ementterm( o* re,ation(+ip

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- $2!

Eamp,e

c,a(( Co,,ection W


521/635

c,a(( Co,,ection W

"""p)b,ic

void &ddE,ement7int8F

boo, Searc+E,ement7int8F

boo, Searc+E,ement&gain7int8Fboo, ?e,eteE,ement7int8F

XF

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- $24

Eamp,e

'* e,ement i( not *o)nd in t+e Co,,ection t+e *)nc


522/635

'* e,ement i( not *o)nd in t+e Co,,ection t+e *)ncSearc+E,ement i,, ret)rn *a,(e

Searc+E,ement&gain @nd( t+e (econd in(tance oe,ement in t+e co,,ection

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- $2$

C,a(( Set

c,a(( Set private Co,,ection W


523/635


private"""

p)b,ic

void &ddMember7int8F

boo, '(Member7int8Fboo, ?e,eteMember7int8F

XF

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- $2%

C,a(( Set

void Set&ddMember7int i8W


524/635


i* 7I '(Member7i8 8&ddE,ement7i8F

X

boo, Set'(Member7int i8W

ret)rn Searc+E,ement7i8FX

1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og- $2:

e*erence(



525/635

Sam( P)b,i(+ing 7T+e aite Aro)p8" 4t+ed" avai,ab,e in (o

Object Oriented Programming U(ing CKK b- o-ce .arre,, 6 p)Co)r(e Tec+no,og-6 Cengage Learning" 4thed. available in soft form

Nationa, Univer(it- o* Comp)ter EmergingScience( 6.&ST Q"n)"ed)"p/R



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i( e9)iva,ent to

c,a(( C+i,d Parent W>X


Private 'n+eritance

e )(e private in+eritance +en e ant to re)


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po* (ome c,a((

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Eamp,e

c,a(( Co,,ection W


530/635

"""p)b,ic

void &ddE,ement7int8F

boo, Searc+E,ement7int8F

boo, Searc+E,ement&gain7int8Fboo, ?e,eteE,ement7int8F

XF


Eamp,e

'* e,ement i( not *o)nd in t+e Co,,ection t+e *)nc


531/635

Searc+E,ement i,, ret)rn *a,(e

Searc+E,ement&gain @nd( t+e (econd in(tance oe,ement in t+e co,,ection


C,a(( Set



532/635

private

"""

p)b,ic

void &ddMember7int8F

boo, '(Member7int8Fboo, ?e,eteMember7int8F

XF


C,a(( Set



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i* 7I '(Member7i8 8

&ddE,ement7i8F

X

boo, Set'(Member7int i8W

ret)rn Searc+E,ement7i8FX


Specia,iation 7e(triction8

t+e derived c,a(( i( be+avio)ra,,- incompatib,e b ,


534/635

ba(e c,a((

Be+avio)ra,,- incompatib,e mean( t+at ba(e c,aa,a-( be rep,aced b- t+e derived c,a((


Specia,iation 7e(triction8

Specia,iation 7e(triction8 can be imp,emented i t d t t d i + it


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private and protected in+eritance


Eamp,e ; Specia,iation 7e(triction8

Person

age Q 12$R age a


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age Q""12$R

&d),t

age Q1XF


537/635

Member access in

Base Class erive! Class

u&lic rivate

rotected rivate

rivate Hidden

Eamp,ec,a(( Per(onW

>

protected


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int ageF

p)b,ic

boo, Set&ge7int Vage8W

i* 7Vage Z Vage 12$8 W

age VageF

ret)rn tr)eF

X

ret)rn *a,(eF

X

XF1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og-

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539/635

p)b,ic

boo, Set&ge7int Vage8Wi* 7Vage Z1< Vage 12$8 W

age VageFret)rn tr)eF

Xret)rn *a,(eF

XXF1#2$#1% COMS&TS 'ntit)te o* 'n*ormation Tec+no,og-

&b(tract Ba(e C,a(( 'n t+e eamp,e( (o *ar6 in+eritance +a( been )(ed to add

*)nctiona,it- to an ei(ting c,a((" No ,etH( ,oo/ at an eamp,e +erein+eritance i( )(ed *or a diJerent p)rpo(e a( part o* t+e origina,de(ign o* a program"

O , d , d t b * , * id t


540/635

O)r eamp,e mode,( a databa(e o* emp,o-ee( o* a idget compan-"eHve (imp,i@ed t+e (it)ation (o t+at on,- t+ree /ind( o* emp,o-ee(are repre(ented" Manager( manage6 (cienti(t( per*orm re(earc+ todeve,op better idget(6 and ,aborer( operate t+e dangero)( idget5(tamping pre((e("

T+e databa(e (tore( a name and an emp,o-ee identi@cation n)mber*or a,, emp,o-ee(6 no matter +at t+eir categor-" 0oever6 *ormanager(6 it a,(o (tore( t+eir tit,e( and go,* c,)b d)e(" .or (cienti(t(6it (tore( t+e n)mber o* (c+o,ar,- artic,e( t+e- +ave p)b,i(+ed"Laborer( need no additiona, data be-ond t+eir name( and n)mber("

O)r eamp,e program (tart( it+ a ba(e c,a(( emp,o-ee" T+i( c,a((+and,e( t+e emp,o-eeH( ,a(t name and emp,o-ee n)mber" .rom t+i(c,a(( t+ree ot+er c,a((e( are derived manager6 (cienti(t6 and ,aborer"

T+e manager and (cienti(t c,a((e( contain additiona, in*ormationabo)t t+e(e categorie( o* emp,o-ee6 and member *)nction( to+and,e t+i( in*ormation6 a( (+on in .ig)re



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Eerci(e 1

'magine a p)b,i(+ing compan- t+at mar/et( bot+ booa)dioca((ette ver(ion( o* it( or/(" Create a c,a(( p)


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a)dioca((ette ver(ion( o* it( or/(" Create a c,a(( p)

t+at (tore( t+e tit,e 7a (tring8 and price 7t-pe oat8 o*p)b,ication" .rom t+i( c,a(( derive to c,a((e( boo/6add( a page co)nt 7t-pe int86 and tape6 +ic+ add( atime in min)te( 7t-pe oat8" Eac+ o* t+e(e t+ree c,a((+o),d +ave a getdata78 *)nction to get it( data *rom at t+e /e-board6 and a p)tdata78 *)nction to di(p,a- i

rite a main78 program to te(t t+e boo/ and tape c,acreating in(tance( o* t+em6 a(/ing t+e )(er to @,, in dgetdata786 and t+en di(p,a-ing t+e data it+ p)tdata


Eerci(e 2

Start it+ t+e p)b,ication6 boo/6 and tape c,a((e( Eerci(e 1 &dd a ba(e c,a(( (a,e( t+at +o,d( an ar


543/635

Eerci(e 1" &dd a ba(e c,a(( (a,e( t+at +o,d( an ar

t+ree oat( (o t+at it can record t+e do,,ar (a,e( opartic),ar p)b,ication *or t+e ,a(t t+ree mont+(" 'ngetdata78 *)nction to get t+ree (a,e( amo)nt( *rom)(er6 and a p)tdata78 *)nction to di(p,a- t+e (a,e(&,ter t+e boo/ and tape c,a((e( (o t+e- are derivebot+ p)b,ication and (a,e(" &n object o* c,a(( boo/

(+o),d inp)t and o)tp)t (a,e( data a,ong it+ it( odata" rite a main78 *)nction to create a boo/ objea tape object and eerci(e t+eir inp)t#o)tp)t capa


Eerci(e !

&(()me t+at t+e p)b,i(+er in Eerci(e( 1 and ! dto add a t+ird a- to di(trib)te boo/( on comp)


544/635

to add a t+ird a- to di(trib)te boo/( on comp)

di(/6 *or t+o(e +o ,i/e to do t+eir reading on t+e,aptop" &dd a di(/ c,a(( t+at6 ,i/e boo/ and tape6derived *rom p)b,ication" T+e di(/ c,a(( (+o),dincorporate t+e (ame member *)nction( a( t+e oc,a((e(" T+e data item )ni9)e to t+i( c,a(( i( t+et-pe eit+er C? or ?D?" Yo) can )(e an en)m t-(tore t+i( item" T+e )(er co),d (e,ect t+e appropt-pe b- t-ping c or d"


e*erence(


Sam( P)b,i(+ing 7T+e aite Aro)p8" 4t+ed" avai,ab,e in (o


545/635

g 7 p8

Object Oriented Programming U(ing CKK b- o-ce .arre,, 6 p)Co)r(e Tec+no,og-6 Cengage Learning" 4thed. available in soft form

Nationa, Univer(it- o* Comp)ter EmergingScience( 6.&ST Q"n)"ed)"p/R




T+an/(


546/635


CSC241:Object Oriented


547/635

ProgrammingSpring 21!

1" Overriding Over,oading

2" M),tip,e 'n+eritance

!" Dirt)a, 'n+eritance

4" Dirt)a, .)nction(#Member(


1#2$#1%.ar+an &adi,

Overriding Member .)nction( oBa(e C,a(( ?erived c,a(( can override t+e member

*)nction( o* it( ba(e c,a((


548/635

To override a *)nction t+e derived c,a(((imp,- provide( a *)nction it+ t+e (ame(ignat)re a( t+at o* it( ba(e c,a((

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- $$!

OverridingParent

"""


549/635

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- $$4

.)nc1

hild"""

.)nc1

Overriding

c,a(( Parent Wp)b,ic


550/635

p

void.)nc178Fvoid.)nc17int8F

XF

c,a(( C+i,d p)b,ic Parent W

p)b,icvoid .)nc178F

XF

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Overriding i( done in (cope o* parent and c+i,d


551/635

Overriding i( done in (cope o* parent and c+i,d

Overriding it+in t+e (cope o* (ing,e c,a(( i( erroto d)p,icate dec,aration

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- $$%

Overriding

c,a(( Parent W

p)b,ic


552/635

p)b,ic

void .)nc178F

void .)nc178F ##Error

XF

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- $$:

Overriding Member .)nction( oBa(e C,a((

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o* ba(e c,a(( ()c+ t+at t+e or/ing o*

*)nction i( tota,,- c+anged

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- $$>X ' need Yo)r anon-mo)( .eed Bac/


567/635

&bo)t t+e 'n(tr)ctor

&bo)t t+eCo)r(e

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- $:2


& c,a(( can in+erit *rom more t+en one c,a((


568/635

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- $:!


Tran(mitter

"""

eceiver

"""


569/635

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- $:4

Tran(mit78 eceive78

P+one

Eamp,e

c,a(( P+one p)b,ic Tran(mitter6 p)b,ic


570/635

W

"""

XF

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- $:$


?erived c,a(( can in+erit *rom p)b,ic ba(e c,a(( a( private and protected ba(e c,a((e(


571/635

c,a(( Mermaid

private oman6 private .i(+

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- $:%


T+e derived c,a(( in+erit( data member( and *)n*orm a,, t+e ba(e c,a((e(


572/635

Object o* derived c,a(( can per*orm a,, t+e ta(/(object o* ba(e c,a(( can per*orm

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- $::

Eamp,e

int main78W

P+one objF


573/635

obj"Tran(mit78F

obj"eceive78F

ret)rn F

X

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- $:" S+o),d ' (tart t+e 'TP again333


606/635

1 concept 1 topic 1 program per c,a(( 555 Nice o/e F58

)e(tion( d)ring ,ect)re(5O Noted

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+ere i( t+e T+eor-33333

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Entertain (t)dent( >"e,, eact,- +o3 can ) ep,ain F58


607/635

Practica, ,i*e6 (t)dent( doing ma(ti d)ring ,ect)re(>

.a(t (peed>+-6 (eem( to b in +)rr- a,a-( 333

.avio)ri(m 6 ) r not ne)tra,>

Not a,, (t)dent( are programmer( mo(t o* t+em are norma, +)man be

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55555555555

?re(( code *or pre(entation>

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- %12

Motivation .o,,oing *)nction print( an arra- o* integer e,em

!oid printrray"int* array, int siOe$


608/635

{

for " int i + .; i - siOe; iBB $

cout -- arrayQ i -- ), ;

}

"""Motivation +at i* e ant to print an arra- o* c+aracter(3

!oid printrray"char* array,int siOe$


609/635

int siOe$

{



}

"""Motivation +at i* e ant to print an arra- o* do)b,e(3

!oid printrray"dou'le* array,int siOe$


610/635

int siOe$

{



}

"""Motivation No i* e ant to c+ange t+e a- *)nction print

arra-" e"g" *rom

(, /, 3, 4, ?


611/635

, , , ,

to

1 5 2 5 ! 5 4 5 $

"""Motivation No con(ider t+errayc,a(( t+at rap( an arra

integer(

class rray {


612/635

int* prray;

int siOe;

pu'lic&

};

"""Motivation +at i* e ant to )(e anrrayc,a(( t+at rap

o* do)b,e3

class rray {


613/635

dou'le* prray;

int siOe;

pu'lic&

};

"""Motivation +at i* e ant to )(e anrrayc,a(( t+at rap(

o* boo,ean variab,e(3

class rray {


614/635

'ool* prray;

int siOe;

pu'lic&

};

"""Motivation

No i* e ant to add a *)nction ()m torrayce +ave to c+ange a,, t+e t+ree c,a((e(


615/635

Aeneric Programming Aeneric programming re*er( to program( contai

generic ab(traction(

& generic program ab(traction 7*)nction6 c,a((8 ct i d it+ t


616/635

parameteried it+ a t-pe

S)c+ ab(traction( can or/ it+ man- diJerent

data


617/635

&dvantage(

e)(abi,it-

ritabi,it-


618/635

-

Maintainabi,it-

Temp,ate( 'n CKK generic programming i( done )(ing temp

To /ind( .)nction Temp,ate(

C, T , t


619/635

C,a(( Temp,ate(

Compi,er generate( diJerent t-pe5(peci@c copie

(ing,e temp,ate

.)nction Temp,ate(

& *)nction temp,ate can be parameteried to opdiJerent t-pe( o* data


620/635

?ec,arationtemplate- class T 8

!oid funName" T 9 $;

00 WR

template- typename T 8


621/635


!oid funName" T 9 $;

00 WR

template- class T, class 1, 8!oid funName" T 9, 1 y, $;

Eamp,e ; .)nction Temp,ate( .o,,oing *)nction temp,ate print( an arra- +aving

an- t-pe o* e,ement(


oid printrra " T* arra int si e $


622/635

!oid printrray" T* array, int siOe $

{


cout -- arrayQ i -- ), ;}

>Eamp,e ; .)nction Temp,ate(int main"$ {

int irrayQ? + { (, /, 3, 4, ? };

!oid printrray" irray, ? $;

00 5nstantiated for intQ


623/635

char crrayQ3 + { \aH, \'H, \cH };

!oid printrray" crray, 3 $;

00 5nstantiated for charQ

return .;}

Ep,icit T-pe Parameteriation & *)nction temp,ate ma- not +ave an- paramete

template -typename T8T 6et5nput"$ {


624/635

6 p "$ {

T 9;

cin 88 9;

return 9;}

>Ep,icit T-pe Parameteriation

int main"$ {

int 9;9 + 6et5nput"$; 00 =rror:


625/635

6 p

dou'le y;

y + 6et5nput"$; 00 =rror:}

>Ep,icit T-pe Parameteriation

int main"$ {

int 9;9 + 6et5nput- int 8"$;


626/635

dou'le y;

y + 6et5nput- dou'le 8"$;}

U(er5de@ned Specia,iation(

& temp,ate ma- not +and,e a,, t+e t-pe( ()cce((

Ep,icit (pecia,iation( need to be provided *or (t-pe7(8


627/635

t-pe7(8

Eamp,e ; U(er Specia,iation(


'ool is=Aual" T 9, T y $ {return " 9 ++ y $;


628/635

}

> Eamp,e ; U(er Specia,iation(

int main {

is=Aual" ?, $; 00 W]is=Aual" %?, %? $; 00 W]


629/635

is=Aual" )a'c, )9yO $;

00 2o6ical =rror:

return .;}

> Eamp,e ; U(er Specia,iation(

template- 8

'ool is=Aual- const char* 8"const char* 9, const char* y $ {


630/635

return " strcmp" 9, y $ ++ . $;

}

> Eamp,e ; U(er Specia,iation(int main {

is=Aual" ?, $;

00 Tar6et& 6eneral template

is=Aual" %?, %? $;00 Tar6et& 6eneral template


631/635

is=Aual" )a'c, )9yO $;

00 Tar6et& user specialiOation

return .;}

e*erence( Object Oriented Programming in CKK6 b- obert La*ore6 p)b,

Sam( P)b,i(+ing 7T+e aite Aro)p8" 4t+ed" avai,ab,e in (o Object Oriented Programming U(ing CKK b- o-ce .arre,, 6 p)

Co)r(e Tec+no,og-6 Cengage Learning"

4thed. available in soft form

Nationa, Univer(it- o* Comp)ter EmergingS i .&ST Q d /R


632/635

Science( 6.&ST Q"n)"ed)"p/R



1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- %!:

T+an/(


633/635

1#2$#1% COMS&TS 'n(tit)te o* 'n*ormation Tec+no,og- %!

Documents

OOP Complete Notes