While Loop In Java

Lecture 25:- While Loop In Java

In Java, the while loop allows you to repeatedly execute a block of code as long as a specified condition is true. The loop will continue to execute until the condition becomes false. The basic syntax of the while loop is as follows:

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while (condition) {
    // Code to be executed repeatedly as long as the condition is true
}

Here's an example of using a while loop to print numbers from 1 to 5:

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public class WhileLoopExample {
    public static void main(String[] args) {
        int count = 1;

        while (count <= 5) {
            System.out.println("Number: " + count);
            count++;
        }
    }
}

Output:

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Number: 1
Number: 2
Number: 3
Number: 4
Number: 5

In the example above, we initialize a variable count to 1. The while loop continues to execute as long as the condition count <= 5 is true. Inside the loop, we print the value of count and then increment it using count++. The loop will stop when the value of count becomes 6 (which is not less than or equal to 5), and the loop exits.

It's important to be cautious when using while loops to avoid infinite loops. An infinite loop occurs when the condition is always true, and the loop never terminates. To prevent this, ensure that the condition will eventually become false during the execution of the loop.

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