java 多线程在swing中的应用

在Swing中进行界面设计的时候，如果点击一个耗时的按钮会发现，在这个按钮的监听方法没返回时，是无法按其它按钮的，多线程能很好的解决这个问题.

package test1;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class ThreadFrame extends JFrame{

public static void main(String[] args) {
// TODO Auto-generated method stub
ThreadFrame tf = new ThreadFrame();
tf.setVisible(true);
}

private JButton btn_login;
private JButton btn_register;
private JPanel panel;
public ThreadFrame(){

setDefaultCloseOperation(EXIT_ON_CLOSE);
setBounds(100, 100, 200, 300);
btn_login = new JButton("登陆");
btn_register = new JButton("注册");
panel = new JPanel();
setContentPane(panel);
panel.add(btn_login);
panel.add(btn_register);

class ActionImp implements Runnable{
@Override
public void run() {
// TODO Auto-generated method stub

System.out.println(Thread.currentThread().getName()+ "正在注册");
try {
Thread.sleep(7000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("注册完毕");
}
}

btn_register.addActionListener(new ActionListener() {

@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
new Thread(new ActionImp()).start();
}
});

btn_login.addActionListener(new ActionListener() {

@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
System.out.println("正在登陆");
}
});

/*btn_register.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
try {
System.out.println("正在注册");
Thread.sleep(7000);
System.out.println("注册完毕");
} catch (InterruptedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
});*/
}
}