While loop in C programming language

While loop in C programming language

In this tutorial, we will discuss the While loop in C programming language

In the C Programming Language, the while is used to evaluates test condition and executes the statement(s) until the Boolean condition becomes true. When the condition becomes false, control exit the loop and goes to the next statement after the while.

Syntex
whileTest_Expression)
{
//Body of while
//statements

}

flow diagram

How while loops works

Initially, the while loop evaluates the test expression inside the parenthesis

if the test expression is true, codes inside the body of while loop are executed and the test expression is evaluated again until the test expression becomes false

when the test expression becomes false the loop control exits from the loop and loop terminated

Program 1

This program displays positive numbers of 1 to 10

 

The above code is executed, it produces the following result

1
2
3
4
5
6
7
8
9
10

 

Program 2

while loop using logical or operator

logical OR (||) operator executes when anyone become true
The above code is executed, it produces the following result
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10

 

Infinite loop

When value >=5, the loop would never end.
The above code is executed, it produces the following result
Hello
Hello
Hello
Hello
Hello
Hello
Hello
Hello
……..
………
ctr+c – to end the execution
Karmehavannan

Recent Posts

Multiply two numbers in Java using scanner| 5 different ways

Multiply two numbers in Java using scanner| 5 different ways In this article, we will…

3 months ago

5 different ways to Divide two numbers in Java using scanner

5 Different ways to Divide two numbers in Java using scanner In this article, we…

3 months ago

Learn 8 Ways to Subtract Two Numbers Using Methods in Java

Learn 8 Ways to Subtract Two Numbers Using Methods in Java In this article, we…

4 months ago

10 ways to subtract two numbers in Java

10 ways to subtract two numbers in Java In this article, we will discuss the…

4 months ago

Java Code Examples – Multiply Two Numbers in 5 Easy Ways

Java Code Examples – Multiply Two Numbers in 5 Easy Ways In this article, we…

4 months ago

How to Divide two numbers in Java| 5 different ways

How to Divide two numbers in Java| 5 different ways In this article, we will…

4 months ago

This website uses cookies.