If statement in C

If statement Definition :

The If statement in C is used to carry out operations depending on a particular situation. If the provided condition is true, then the operation described in a certain statement or block of statements will be executed otherwise not.
if statement in C

Syntax:

if(condition){
// statements to be executed if condition is true;
}

Working of if statement in C:

  • Step 1 : In the first step, condition/expression inside parenthesis is checked whether it is true or false.
  • Step 2 : If statement is True, statements inside if block will be executed for performing the operations.
  • Step 3 : If the condition is False , statements after the end of if block will be executed
if statement in C working

Example 1:

Run

#include <stdio.h>
int main()
{
    int j = 7;
      
    if (j > 1) {  // checking the condition and take decision
        printf("PrepInsta is one of the best for placement preparation");
    }
  
    printf("\nPrepInsta");
  
    return 0;
}

Output:

PrepInsta is one of the best for placement preparation
PrepInsta
In the above example , the value of j initialize as 7 and when the condition of if (j>1) is checked , this is taken as true and both the statements inside if block is executed and “PrepInsta is one of the best for placement preparation” and “PrepInsta” will be printed on the output screen.

Example 2:

Run
#include <stdio.h>
int main()
{
    int j = 7;
      
    if (j < 1) {  // checking the condition and take decision
        printf("PrepInsta is one of the best for placement preparation");
    }
  
    printf("\nPrepInsta");
  
    return 0;
}

Output:

PrepInsta

In the above example , the value of j initialize as 7 and when the condition of if (j<1) is checked , this is taken as false and first statement at end of if block  is executed and “PrepInsta” will be printed on the output screen.

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