java窗体坐标获取

给你一个简单的例子吧，自己刚写的，看看是不是你想要的吧。
import java.awt.event.*;
import java.awt.*;

import javax.swing.JFrame;

public class GetSize_Test extends JFrame implements ActionListener{

static GetSize_Test frame = null;
/**
* @param args
*/
public GetSize_Test(){
addWindowListener(new WindowDestroyer());
this.getContentPane();
setTitle("Welcome!");
setBounds(300,200,400,300);
setVisible(true);
}
private void getFrameSize(){
Rectangle test = frame.getBounds();

System.out.println("窗体的坐标：("+test.x+","+test.y+")");
System.out.println("窗体的大小（高，宽）：("+test.height+","+test.width+")");
}
public class WindowDestroyer extends WindowAdapter {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
}
public void actionPerformed(ActionEvent e) {}
public stat