How to use while loop in C Programming

 

Sometimes in C program we need to repeat statements for certain number of times. So in order to repeat statements for number of times we use repetition structure in C programming. There are 3 types of repetition structures available in C programming namely while, do-while and for. Following simple program explains how to use while repetition structure (also called as while loop) to print numbers from 1-10.

[js]
#include <stdio.h>

int main(void){
// while loop is a type of repetition structure in C programming. In any loop you need to
//fulfill following 4 conditions
int i; // 1st condition: define control variable
i = 1; // 2nd condition: assign initial value to control variable
while(i<=10){ // 3rd condition: define loop termination condition
printf("%dn", i);
i++; // 4th condition: increment/decrement control variable
}

return 0;
}
[/js]

Output:

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