Java™ After Hours: 10 Projects You'll Never Do at Work

Creating Intercom 2

As with Intercom 1, the first item of business in Intercom 2 is to create its window, which you see in Figure 9.2. Here's how the code does it—note in particular the Connect button, which Intercom 1 (the server) doesn't have:

import java.awt.*;
import java.awt.event.*;

class Intercom2 extends Frame implements Runnable, ActionListener
{
    private Button button1, button2;
					private TextArea textarea1, textarea2;
					private TextField textfield1;
					private Label label1, label2, label3;
					public static void main(String[] args)
					{
					new Intercom2();
					}
					public Intercom2()
					{
					setLayout(null);
					label1 = new Label("Server IP address:");
					label1.setBounds(35, 80, 105, 20);
					add(label1);
					textfield1 = new TextField("127.0.0.1");
					textfield1.setBounds(145, ...