If else Statement In C Programming

If else Statement In C Programming

C Programming uses the keyword if and else to implement the decision control instruction.

Syntax:

if (/* condition */)
{
    /* code */
}
else
{
    /* code */
}

If the condition is true then execute this statement ;  

Else execute 'this statement';

How if statement works in C ?

1. If the condition is evaluated to true,

• code inside the body of if are executed.
• code inside the body of else are skipped from execution.

2. If the condition is evaluated to false,

• code inside the body of else are executed
• code inside the body of if are skipped from execution.

Example

#include<stdio.h>

int main(){
    int a = 2, b = 3;
    if(a<b){
        printf("b is greater than a");
    }
    else{
        printf("a is greater than b")
    }
    return 0;
}

Output

b is greater than a

Flowchart of if else statement