C if Statement; In this tutorial, i am going to show you if statement in C programming with examples.
C if Statement
In c programming, if statement is a programming conditional statement that, if proved true, performs a function or displays information.
Syntax of C if Statement
The syntax of the if
statement in C programming; as shown below:
if (test expression) { // code }
Example 1 – if Statement in C
See the following c program for if statement; as shown below:
// Program to display a number if it is negative #include <stdio.h> int main() { int number; printf("Enter an integer: "); scanf("%d", &number); // true if number is less than 0 if (number < 0) { printf("You entered %d.\n", number); } printf("The if statement is easy."); return 0; }
Output of the above c program
Enter an integer: -2 You entered -2. The if statement is easy.
Explaination of above c program
The if
statement evaluates the test expression inside the parenthesis ()
.
- If the test expression is evaluated to true, statements inside the body of
if
are executed. - If the test expression is evaluated to false, statements inside the body of
if
are not executed.
Example 2 – if statement in c
See the second c program for if statement; as shown below:
#include <stdio.h> int main() { int x = 20; int y = 22; if (x<y) { printf("Variable x is less than y"); } return 0; }
Output of the above c program
Variable x is less than y
Explanation of above c program
- The condition (x<y) specified in the “if” returns true for the value of x and y, so the statement inside the body of if is executed.
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