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Disclaimer: This presentation is prepared by trainees of baabtra as a part of mentoring program. This is not official document of baabtra –Mentoring Partner Baabtra-Mentoring Partner is the mentoring division of baabte System Technologies Pvt . Ltd
Week Target Achieved
1 30 23
2
3
Typing Speed
Jobs Applied
Week Company Designation Applied Date Current Status
1
2
3
WELCOME
Muhammed Ajmal IK [email protected] www.facebook.com/username twitter.com/username in.linkedin.com/in/profilename 9745020951
Scope Of Variable
Overview
Variable
Scope Of Variable
Global Variable
Local Variable
Program
Variable
• Element of the Programing Language.
• Hold data temporary.
• Value Lost as soon as program terminate
• Declaration:
data type variable name;
Scope of Variables
• Scope refers to the visibility of variables.
• Two types
Local
Global
Global Variables
• Declared out side of all Function.
• Every part of program can access.
• Many functions use the same data.
Example
• Example: #include <stdio.h>
int count; /* count is global */
void func1(void);
void func2(void);
main(void)
{
count = 100;
func1();
}
void func1(void)
{
printf("count is %d", count);
}
void func2(void)
{ for(count=0; count<10; count++) printf("count is %d", count); }
Example contd..
Local Variables
• Declared inside a function or Block.
• Scope restricted.
• Scope begun by an opening brace and ends with its
closing brace.
Example
#include <stdio.h>
void func1(void);
void func2(void);
main()
{
int count; /* count is global */
count = 100;
func1();
}
Example cont.
void func1(void)
{
Int count;
printf("count is %d", count);
}
void func2(void)
{
for(count=0; count<10; count++) //error
printf("count is %d", count);
}
Example combination
int g = 20;
funcn()
{
Int g=30; //print 30
Printf(“%d”,g);
}
int main ()
{
Printf(“%d”,g); //print 20
}
Factorial Of a Number
#include<stdio.h>
int Factorial(int n)
{
int fact=1;
if(n==1)
return 1;
else
return fact=n*Factorial(n-1);
}
Factorial contd..
main()
{
int n,f;
printf("enter Number to find factorial: ");
scanf("%d",&n);
f=Factorial(n);
printf("factorial of %d: %d",n,f);
}
Return 3*2 i.e 6
• N=5
• 5*Factorial(4);
• 4*Factorial(3);
• 3*Factorial(2);
• 2*Factorial(1);
• Return 1
Return 4*6 i.e 24
Return 2*1 i.e 2
Return 5*24 i.e 120
Factorial of 5 :120
Thank you
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In C++
Int main()
{
Private:
Protected:
Public:
}
In java
Int main()
{
Default:
Private:
Protected:
Public:
}
