doit.java

来自「java实验报告书：其中包括实验代码以及说明等」· Java 代码 · 共 24 行

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class DoIt{
 public static void main (String args[]) {
 JFrame frame_doit = new JFrame ("Do");
 Container contentPane = frame_doit.getContentPane();
 contentPane.setLayout(new BorderLayout());
 final JTextField tf_write=new JTextField(10);
 JButton button_click=new JButton("Click");
 final JLabel label_show=new JLabel("Null");
 contentPane.add(tf_write,BorderLayout.NORTH);
 contentPane.add(label_show,BorderLayout.CENTER);
 contentPane.add(button_click,BorderLayout.SOUTH);
 frame_doit.pack();
 frame_doit.show();
 button_click.addActionListener(new ActionListener(){
 public void actionPerformed(ActionEvent e){
 label_show.setText(tf_write.getText());}});
 frame_doit.addWindowListener(new WindowAdapter(){
 public void windowClosing(WindowEvent e){
  System.exit(0);}}); }}