CIS 3260

Introduction toProgramming

Using C#

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Tom Gregory

• Center for Process Innovation• Soccer Referee• Boy Scout leader• B.S. Computer Science• MBA• Developer

USSF Grade 16

heh

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Tom GregoryCompiled Languages

Interpreted (Scripting)Languages

Special PurposeLanguages

C/C++JavaC#

(VB)

Object PascalAssembly

PHPRubyJavascriptFlash ActionscriptCold FusionBashVB/VBAScheme (Lisp)BASIC

SQLHTML, XML, XSLTCSS

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Introductions

• Name (Preferred name & last name)• Major• Programming experience• Something interesting• Anything else

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Syllabus Review

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GIYF

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Semester map

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My goals

• Get you to think like a programmer• Help you learn more• Make it as easy/fun as possible

Teach more,

But make it easier.

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Looking ahead (today)

• Short history of computers/programming• Bits, bytes• Hexadecimal• Types of languages• Color (RGB & HSV)

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Words to know

• Binary• Bit• Byte• Hexadecimal• Complied language• Interpreted language• RGB, CMYK• HSV (HSB): Hue, Saturation, Value/Brightness

This is easy!

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0 1 1 0 1 0 0 1

Byte

Bit

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Second-grade math

1 3 3 7

1,337

(1 x 103) + (3 x 102) + (3 x 101) + (7 x 100)

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Binary

1 3 3 7

1,337

(1 x 103) + (3 x 102) + (3 x 101) + (7 x 100)

1 1 0 1

1101

(1 x 23) + (1 x 22) + (0 x 21) + (1 x 20)

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1 3 3 7

1,337

1000 100 10 1

1 1 0 1

1011

8 4 2 1

= 13

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Practice

Convert from binary to decimal:

1111

0011

0111

0110

1110

=

=

=

=

=

15

3

7

6

14

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Hexadecimal

1 3 3 7

1,337

(1 x 103) + (3 x 102) + (3 x 101) + (7 x 100)

8 B 2 F

0x8B2F

(8 x 163) + (11 x 162) + (2 x 161) + (15 x 160)

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1 3 3 7

1,337

1000 100 10 1

8 B 2 F

0x8B2F

4096 256 16 1

= 35,631

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Practice

Convert from binary to hex:

1001

0011

1010

1110

0111

=

=

=

=

=

0x9

0x3

0xA

0xE

0x7

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Practice

Convert from hex to decimal:

0x0C

0x2F

0xFF

0xFB

=

=

=

=

12

47

255

251

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Practice

Identify most-significant bit:

0x0C

0x80

0x90

0xB8

0

1

0

1

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Do it in C#

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…

48 00000000 456E7465722061206E-

49 00000009 756D6265723A2000

50 00000011 456E74657220616E6F-

51 0000001A 74686572206E756D62-

52 00000023 65723A2000

…

prompt1 db "Enter a number: ", 0

prompt2 db "Enter another number: ”, 0

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44 ... 45 call read_int ; read integer46 mov eax, prompt1 ; store into input147 48 mov eax, prompt2 ; print out prompt49 call print_string50 51 call read_int ; read integer52 mov [input2], eax ; store into input253 54 mov eax, [input1] ; eax = dword at input155 addeax, [input2] ; eax += dword at input256 mov ebx, eax ; ebx = eax57 58 dump_regs 1 ; print out register values59 dump_mem 2, outmsg1, 1 ; print out memory

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Types of programming languages

Compiled Interpreted

Statically typed Dynamically typed

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Color

RGB

CMYK

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Red

GreenBlue

Cyan

Magenta Yellow

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Hue: 0 - 360°Saturation: 0 - 100%Value (Brightness): 0 – 100%

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Estimate RGB values:

Convert from HSV• 90°, 50%, 50%

• 120°, 0%, 100%

• 30°, 75%, 50%

(85, 105, 53)

(255, 255, 255)

(99, 63, 29)

Predict color &