初学java遇到的问题

[sunyraindrop]

如何在swt desiger中实现button的清空与登录功能即如何修改下列代码

package com.accp.zxt;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

public class Mine extends JFrame {


private JPasswordField passwordField;
private JTextField textField;
/**
* Launch the application
* @param args
*/
public static void main(String args[]) {
try {
Mine frame = new Mine();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}

/**
* Create the frame
*/
public Mine() {
super();
getContentPane().setLayout(null);
setBounds(100, 100, 257, 313);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

final JButton button = new JButton();
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});


button.setText("登录");
button.setBounds(56, 197, 57, 23);
getContentPane().add(button);

final JButton button_1 = new JButton();
button_1.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {



}
});
button_1.setText("清空");
button_1.setBounds(135, 197, 57, 23);
getContentPane().add(button_1);

textField = new JTextField();
textField.setBounds(107, 60, 85, 23);
getContentPane().add(textField);

passwordField = new JPasswordField();
passwordField.setBounds(107, 112, 85, 23);
getContentPane().add(passwordField);

final JLabel label = new JLabel();
label.setText("用户名");
label.setBounds(56, 60, 45, 23);
getContentPane().add(label);

final JLabel label_1 = new JLabel();
label_1.setText("密 码");
label_1.setBounds(56, 116, 45, 15);
getContentPane().add(label_1);
//
}

}

[starr0110]

button_1.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {
textField.setText("");


}
});