405b03a9005b001d15a7f7bd366cdfc5

里面所含源码是本人平时做程序的一些实例

package notepad;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class HappyChat extends JFrame implements ItemListener, ActionListener {
	JPanel pnlMain;
	JMenuBar mbMain;
	JMenu mnuSystem,mnuHelp;
	JMenuItem mnuiCls,mnuiSave,mnuiClock,mnuiExit,
	mnuiContent,mnuiIndex,mnuiAbout;
	JLabel lblUser,lblNumber,lblInfo;
	JLabel lblYou,lblContent,lblFile;
	JList lstUser;
	JTextArea taInfo;
	JComboBox cmbUser;
	JCheckBox ckbSilent;
	JTextField txtContent,txtFile;
	JButton btnSend,btnSave,btnExit,btnCls,btnClock,
	btnSendFile,btnBrowse;
	//构造器部分
	public HappyChat()
	{
		//组件初始化
		mbMain=new JMenuBar();
		pnlMain=new JPanel();
		setContentPane(pnlMain);
		mnuSystem=new JMenu("系统(S)");
		mnuHelp=new JMenu("帮助(H)");
		mbMain.add(mnuSystem);
		mbMain.add(mnuHelp);
		btnSend=new JButton("发送");
		pnlMain.add(btnSend);
		//设置窗体背景图片
		Icon logo=new ImageIcon("images/loginlogo.jpg");
		JLabel lblLogo=new JLabel(logo);
		
		setTitle("聊天室(HappyChar)");
		Toolkit tk=Toolkit.getDefaultToolkit();
		Image img=tk.getImage("E:/java/images/appico.jpg");
		this.setIconImage(img);
		//窗体初始化
		this.setJMenuBar(mbMain);
		Dimension scrnSize=tk.getScreenSize();
		setLocation((scrnSize.width-this.getWidth())/2,(scrnSize.height-this.getHeight())/2);
		setSize(600,400);
		setVisible(true);
		this.setResizable(false);
		this.setDefaultCloseOperation(EXIT_ON_CLOSE);
		
	}
	@Override
	public void itemStateChanged(ItemEvent e) {
		// TODO Auto-generated method stub
		
	}
	public void actionPerformed(ActionEvent ae)
	{
		
	}
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		new HappyChat();
	}

}