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Documentation Section |
/*
Program for addition of 2 numbers */ |
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Link Section (or)
Preprocessor Directives |
#include<stdio.h>
#include<conio.h> |
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Definition section |
#define
pf printf |
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Global Declaration Section |
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Main() Function Section main() { Declaration part; Execution part; } |
Main() Function Section
main() { int a,b,c; clrscr(); printf(“Enter a and b
values:”); scanf(“%d%d”,&a,&b); c=a+b; printf(“sum is %d”,c); } |
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Sub Program Section (or) User-defined function Section Function 1 Function 2 ----------------- Function n |
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Write a “C” program to print a message.
Method 1:-
/*print a message
/*print a message
of your choice */
#include<stdio.h>
#define pf printf
main()
{
pf(“welcome to “C”);
}
Method 2:-
//print a message
#include<stdio.h>
#define pf printf
Void main()
{
pf (“welcome to “C”);
}
Method 3:-
//print a message
#include<stdio.h>
#define pf printf
int main()
{
Pf(“welcome to “C”);
return 0;
}
#include<stdio.h>
#define pf printf
main()
{
pf(“welcome to “C”);
}
Method 2:-
//print a message
#include<stdio.h>
#define pf printf
Void main()
{
pf (“welcome to “C”);
}
Method 3:-
//print a message
#include<stdio.h>
#define pf printf
int main()
{
Pf(“welcome to “C”);
return 0;
}
/* Program to illustrate the different data types and there number of bytes occupied */
#include<stdio.h>
#include<conio.h>
void main()
{
int a=22;
char b[]="raj kumar";
char c='f';
float d=143.5;
double e=1234.54;
clrscr();
printf("\n the string is : %s",b);
printf("\n the character is :%c",c);
printf("\n the number of bytes occupied by char is :%d",sizeof(c));
printf("\n");
printf("\n the integer is %d",a);
printf("\n the number of bytes occupied by int is :%d",sizeof(a));
printf("\n");
printf("\n the float value is %f",d);
printf("\n the number of bytes occupied by flaot is :%d",sizeof(d));
printf("\n");
printf("\n the double value is %lf",e);
printf("\n the number of bytes occupied by double is :%d",sizeof(e));
getch();
}
#include<stdio.h>
#include<conio.h>
void main()
{
int a=22;
char b[]="raj kumar";
char c='f';
float d=143.5;
double e=1234.54;
clrscr();
printf("\n the string is : %s",b);
printf("\n the character is :%c",c);
printf("\n the number of bytes occupied by char is :%d",sizeof(c));
printf("\n");
printf("\n the integer is %d",a);
printf("\n the number of bytes occupied by int is :%d",sizeof(a));
printf("\n");
printf("\n the float value is %f",d);
printf("\n the number of bytes occupied by flaot is :%d",sizeof(d));
printf("\n");
printf("\n the double value is %lf",e);
printf("\n the number of bytes occupied by double is :%d",sizeof(e));
getch();
}
output:
//Program to illustrate the Local and Global variables
#include<stdio.h>
#include<conio.h>
int global;
void main()
{
int local;
clrscr();
printf("\n the local variable is : %d",local);
printf("\n the global variable is : %d",global);
getch();
}
output:
