While Loop

Syntax:

initialization
while (condition)
{
   statement
   Variable increment or decrement operation
}

First, in generic, we initialize the variable, and then we evaluate the condition for the same variable. If it happens to be true, it goes inside the loop, does the job, and then updates the same expression/condition.

Examples:1) Print table of 2

#include<stdio.h>
int main()
{
  int i =2;  ==> Initialization
  while ( i < 22)
  {
      printf("\n %d", i);
      i+=2; ==> Incrementation
  }
  return 0;
}

Note:

If there is a single statement inside the loop or if condition, then we do not need curly( {} ) braces.
Example:

int a =5;
if (a ==5)
  print("\n hello world");

Relevant Posts:

• if-else statement
• switch-case statement
• for loop
• do-while loop
• break, continue and goto statement

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‹ For Loops in C

Do-While loop ›

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Categories: C Language