37.txt

是一个 java 基础学习软件 有设计说明

// package

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.lang.*;
import java.awt.geom.*;
import java.util.*;
//   1

/**
	定义了一个空 Frame 宽度  WIDTH  高度 HEIGHT

*/
class BlankFrame extends JFrame
{
	public BlankFrame()
	{
		counter++;
		setTitle("Frame "+counter);
		setSize (WIDTH, HEIGHT);
		setLocation(SPACE*counter,SPACE*counter);
	//  create a panel
   	  EventPanel panel = new EventPanel();
   	 	 // add panel to frame
   	  Container contentPane = getContentPane();
   	  contentPane.add(panel);

   }

   public static final int WIDTH = 300;
   public static final int HEIGHT = 300;
   public static final int SPACE = 30;

   private static int counter = 0;

}

//
聊天界面

// 显示框架
public class ChatTest
{
   public static void main(String[] args)
   {
      ChatFrame frame = new ChatFrame();
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setLocation(250,100);
      frame.setIconImage(Toolkit.getDefaultToolkit().getImage("about.gif"));
	  frame.setVisible(true);
	  frame.setResizable(false);
	  frame.addWindowListener(new
	  		WindowAdapter()
	  		{
				public void windowClosing(WindowEvent e)
				{
					System.exit(0);
				}
			});
	}
}

class ChatFrame extends JFrame
{
   Container contentPane;
   public ChatFrame() 								// initialization  Emailframe
   {
      this.setSize(WIDTH, HEIGHT);
      this.setTitle("...局域网聊天 ... ");
  	  contentPane = getContentPane();
  	  
	  show = new JTextArea(8,24);
	  show.setFont(new Font("宋体",Font.PLAIN,20));
	  scroll = new JScrollPane(show);
	  contentPane.add(scroll,BorderLayout.CENTER); 
	  show.setLineWrap(true);
	  	
	  msgPanel panel = new msgPanel(); 
	  Border border = BorderFactory.createEtchedBorder();
	  panel.setBorder(border);
	  contentPane.add(panel,BorderLayout.SOUTH);

   }
   
	public static final int WIDTH = 365;
	public static final int HEIGHT = 400;
	private JTextField message;
	private JTextArea  show;
	private JComboBox  box;
	private JButton send; 
	private JScrollPane scroll;
	private BufferedReader in ;
	private PrintWriter out;
	  
   public void sendMsg()									//  send Email
   {
   		show.append(box.getSelectedItem()+message.getText()+"\n");
   		scroll.validate();
   }
   class msgPanel extends JPanel
   {
   	  public msgPanel()
   	  {
	   	  box = new JComboBox();
	   	  box.addItem("妹妹:");
	   	  box.addItem("哥哥:");
	   	  this.add(box);
	   	  
	   	  message = new JTextField(22);
	   	  message.setFont(new Font("宋体",Font.PLAIN,20));
	   	  this.add(message);
	   	   
		  send = new JButton("发送");
		  send.addActionListener(new
			ActionListener()
			{
				public void actionPerformed(ActionEvent event)
				{
					new Thread()
					{
						public void run()
						{
							sendMsg();
							
						}
					}.start();
				}
			}); 
		  this.add(send);  
	 }
   }
}