splashwindow.java

一个自己用JAVA写的聊天程序,希望对大家游泳

package liaotian;
/*
 * SplashWindow.java
 *
 * Created on 2006年11月12日, 下午11:25
 *
 * To change this template, choose Tools | Options and locate the template under
 * the Source Creation and Management node. Right-click the template and choose
 * Open. You can then make changes to the template in the Source Editor.
 */

/**
 *
 * @author xingwang
 */
import java.awt.*;
import java.awt.event.*;
import java.util.Enumeration;

import javax.swing.*;
public class SplashWindow extends JWindow implements ActionListener {
    JLabel back = new JLabel(new ImageIcon("back.jpg"));
    JProgressBar progressBar = new JProgressBar(1,50);
    Timer timer;
    int n=50;
    public SplashWindow() {
    	setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
    	progressBar.setStringPainted(true);
    	progressBar.setString("正在加载程序......");
    	getContentPane().add(back,"Center");
    	getContentPane().add(progressBar,"South");
    	setSize(234,260);
    	toFront();
    	setLocation(200,200);
    	setVisible(true);
    	timer = new javax.swing.Timer(50,this);
    	timer.addActionListener(this);
    	timer.start();
    }
    public void actionPerformed(ActionEvent e) {
    	if(--n>0) {
    		progressBar.setValue(50-n);
    		timer.restart();
    	}
    	else {
    		timer.stop();
    		dispose();
                JDialog.setDefaultLookAndFeelDecorated(true);
		Font font = new Font("JFrame",Font.PLAIN,14);
		Enumeration keys = UIManager.getLookAndFeelDefaults().keys();
		while(keys.hasMoreElements()) {
			Object key = keys.nextElement();
			if(UIManager.get(key) instanceof Font)
				UIManager.put(key, font);
		}
    		new MainFrame();
    	}
    }
    public static void main(String args[]) {
    	new SplashWindow();
        //new MainFrame();
    }
}