1. Software to sequence diagram

context

Consider the following program code:

//MyFrame.java import javax.swing.JButton; import javax.swing.JFrame; public class MyFrame extends JFrame { public JButton button; public MyFrame() { this.setSize(250, 250); button = new JButton("Go"); button.setSize(100, 100); button.setActionCommand("Go"); this.add(button); this.setDefaultCloseOperation(EXIT_ON_CLOSE); } } //MyListener.java import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class MyListener implements ActionListener { public static void main(String[] args) { MyListener listener = new MyListener(); MyFrameframe = new MyFrame(); frame.button.addActionListener(listener); frame.setVisible(true); } @Override public void actionPerformed(ActionEvent e) { System.out.println(e.getActionCommand()); } }

Task:

How exactly does the interaction between the classes work when someone clicks the "Go" button?

a) Create a sequence diagram for the interaction between the two classes,

starting with the main method. Pay attention to the correct use of synchronous and

asynchronous messages.

b) Correct the "Play Game" sequence diagram from the Connect Four example.

Note: You are also allowed to run the code and examine it with an IDE.