Complete the initUI() method with your codes to show that when we click on a button with label "Quit", the application terminates (this is not a complete program and that's fine).

public class QuitButtonEx extends JFrame {

    public QuitButtonEx() {

        initUI();

    }

 

    private void initUI() {

 

        var quitButton = new JButton("Quit");

//add code to add action listener

 

                //add code to create layout

       

                //add code to set title "Quit button"

       

                //add code to set size

       

                //add code to set relative location

       

                //write code to exit on close

       

    }