SwitchExample.java

import java.util.Scanner;

public class SwitchExample {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Select an option");
        System.out.println("1. Print Message");
        System.out.println("2. Perform Calculation");
        System.out.println("3. Exit");

        int choice = scanner.nextInt();

        switch (choice) {
            case 1:
                System.out.println("You have selected Print message!");
                System.out.println("Enter the message:");
                scanner.nextLine();
                String message = scanner.nextLine();
                System.out.println("Message:" + message);
                break;
            case 2:
                System.out.println("You have selected to perform calculation!");
                System.out.println("Enter two numbers");
                int num1 = scanner.nextInt();
                int num2 = scanner.nextInt();
                System.out.println("Sum:" + (num1 + num2));
                break;

            case 3:
                System.out.println("Exit Program");
                break;

            default:
                System.out.println("Invalid Option!Please select valid option");
                break;
        }
        scanner.close();

    }
}