Simple while Loop In C

As we discussed before the loop have three parts.

• Initialization
• Condition Checking
• Increment Or Decrement Part

while loop is known as entry control loop, in this if the condition is true then the statement inside loop will be executed.

Syntax

variable=0;
while(condition)
{
	code statement
	variable++; or variable--;
	//increment or decrement part
}

Example is below

#include<stdio.h>
#include<conio.h>

void main()
{
    int i = 0;  // declaration and initialization at the same time
	
    clrscr();

    printf("\nPrinting numbers using while loop from 0 to 9\n\n");

    /* 
        while i is less than 10 
    */
    while(i<10)
    {
        printf("%d\n",i);
        i++;    // same as i=i+1;
    }
	
    getch();
}

OutPut

Printing numbers using while loop from 0 to 9


0
1
2
3
4
5
6
7
8
9