I am currently busy with my programming assignment. However, I got stuck on this section below. Im not sure how to do this part. I have also provided the code I have done so far.:

1. Modify your program so that it responds differently to different input.

• It should display one message if the answer is correct, like "Correct!"
• It should display a different message if the answer is valid ("A", "B", "C", "D", or "E") but
• incorrect, like "Incorrect. Please try again."
• It should display a third message if the answer is invalid (anything other than single characters
• "A", "B", "C", "D", and "E"), like "Invalid answer. Please enter A, B, C, D, or E." Run your program and test each of these possibilities.
• Modify your program so that it asks the question and responds with a dialog until the user enters the correct answer.
• Move the statements that record the answer and display a response into a while loop.
• Use "break" or "return" to exit the loop when the answer is correct.

HERE is the code I have done so far:

import javax.swing.JOptionPane;

public class Quiz {

public static void main(String[] args) {

// TODO Auto-generated method stub

String question = "which of the following is an example of mexican food? ";

question += "A. Hamburger ";

question += "B. Pizza ";

question += "C. Fries ";

question += "D. Pasta ";

question += "E. Tacos ";

String answer = JOptionPane.showInputDialog(question);

answer = answer.toUpperCase();

if (answer.equals("E")) {

JOptionPane.showMessageDialog(null,"Correct!");

}

if (answer.equals("A")) {

JOptionPane.showMessageDialog(null,"Try again!");

}

if (answer.equals("B")) {

JOptionPane.showMessageDialog(null,"Better luck next time!");

}

if (answer.equals("C")) {

JOptionPane.showMessageDialog(null,"Try again!");

}

if (answer.equals("D")) {

JOptionPane.showMessageDialog(null,"Try again!");

}

}

}