While Loop in java programming (V30)

Loop Control

Loop control refers to the mechanism used to control the flow of execution in a loop. Loop statements allow us to execute a statement or a group of statements multiple times, and below is the general form of loop statements in most Java programming:

Flow Diagram:

Java Loop

The Java programming language provides several types of loops: while loop, do while loop, for loop, and enhanced for loop to handle looping requirements.

While Loop

The while loop in Java is used to execute a block of code repeatedly as long as the specified condition is true. It tests the condition before executing the loop body.

Syntax:

Flow Diagram:

Source Code:

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import java.util.Scanner;
public class WhileLoop {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int number;

        System.out.print("Enter a number (0 to exit): ");
        number = scanner.nextInt();
        while (number != 0) { // 0 != 0 //false
            System.out.println("You entered: " + number);
            System.out.print("Enter another number (0 to exit): ");
            number = scanner.nextInt();
        }
        System.out.println("Loop terminated. Goodbye!");
        scanner.close();
    }
}

Result:

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