Question

java program

QUESTION 2: 1. Write a do-while loop that asks the user to select a task from the following menu to continue: 1. Option 1 2. Option 2 3. Option 3 4. Option 4 5. Exit Read the selection from the keyboard then write the switch statement: For option 1, display the message "Do the option 1" For option 2, display the message "Do the option 2" For option 3, display the message "Do the option 3" For option 4, display the message "Do the option 4" For option 0, display the message "Terminate the program” The do.. while loop ends when users select from the menu

Answer 1

Program: In this program, we run a do-while loop and display a menu for the user, take input from the user and display the output using switch case statements. The do-while loop ends when the user enters 0.

Code:

import java.util.Scanner;

public class Loop {
    public static void main(String[] args) {

        //Create Scanner class instance
        Scanner scan = new Scanner(System.in);

        //Define variable for userinput
        int userInput;

        //Start the do-while loop
        do {

            //Display message
            System.out.println("Please select one of the following tasks to continue: ");
            System.out.println("1. Option 1 \n2. Option 2 \n3. Option 3 \n4. Option 4 \n5. Exit");

            //Take user input from keyboard
            userInput = scan.nextInt();

            //Switch case statement
            switch (userInput){
                case 1:
                    System.out.println("Do the option 1");
                    break;
                case 2:
                    System.out.println("Do the option 2");
                    break;
                case 3:
                    System.out.println("Do the option 3");
                    break;
                case 4:
                    System.out.println("Do the option 4");
                    break;
                case 0:
                    System.out.println("Terminate the program");
                    break;
                default:
                    System.out.println("Invalid task");
                    break;
            }
        }
        //While loop condition
        while(userInput!=0);
    }
}

import java.util.Scanner; public class Loop { public static void main(String[] args) { 3 //Create Scanner class instance Scanner scan = new Scanner(System.in); //Define variable for userinput int user Input; //Start the do-while loop do { //Display message System.out.println("Please select one of the following tasks to continue: "); System.out.println("1. Option 1 \n2. Option 2 \n3. Option 3 \ns. Option 4 \n5. Exit"); //Take user input from keyboard User Input = scan.nextInt(); //Switch case statement switch (user Input) { case 1: System.out.println("Do the option 1"); break; case 2: System.out.println("Do the option 2"); break; case 3: System.out.println("Do the option 3"); break; case 4: System.out.println("Do the option 4"); break; case 0: System.out.println("Terminate the program"); break; default: System.out.println("Invalid task"); break; } } //While loop condition while(user Input !=0); } }

Output:

Please select one of the following tasks to continue: 1. Option 1 2. Option 2 3. Option 3 4. Option 4 5. Exit Do the option 1 Please select one of the following tasks to continue: 1. Option 1 2. Option 2 3. Option 3 4. Option 4 5. Exit Do the option 3 Please select one of the following tasks to continue: 1. Option 1 2. Option 2 3. Option 3 4. Option 4 5. Exit Do the option 4 Please select one of the following tasks to continue: 1. Option 1 2. Option 2 3. Option 3 4. Option 4 5. Exit Terminate the program Process finished with exit code o -