import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class ShutFrame extends JFrame implements ActionListener,KeyListener{
private JLabel label_1 = null;
private JLabel label_2= null;
private JLabel overTime = null;
private JTextField HH = null;
private JTextField mm = null;
private JTextField ss = null;
private JButton exit = null;
private JButton hide = null;
private JButton start = null;
public ShutFrame(){
label_1 = new JLabel("请输入时,分,秒!");
label_2 = new JLabel("距离关机时间还有:");
overTime = new JLabel("在这里显示时间");
HH = new JTextField(3);
mm = new JTextField(3);
ss = new JTextField(3);
exit = new JButton("退出");
hide = new JButton("隐藏");
start = new JButton("开始");
JPanel jp1= new JPanel();
JPanel jp2= new JPanel();
JPanel jp3= new JPanel();
jp1.add(label_1);
jp1.add(HH);
jp1.add(mm);
jp1.add(ss);
jp2.add(label_2);
jp2.add(overTime);
jp3.add(exit);
jp3.add(hide);
jp3.add(start);
this.setLayout(new GridLayout(3,1));
this.add(jp1);
this.add(jp2);
this.add(jp3);
this.setBounds(200,200,250,200);
hide.addActionListener(this);
this.addKeyListener(this);
this.setVisible(true);
}
public void actionPerformed(ActionEvent e){
this.setVisible(false);
}
public void keyTyped(KeyEvent e){ }
public void keyPressed(KeyEvent e){
System.out.println(e.getKeyCode());
//System.out.println(e.VK_KP_DOWN); if(e.getKeyCode() == 40){//下
}
if(e.getKeyCode() == 39){//右
}
if(e.getKeyCode() == 37){//左
}
if(e.getKeyCode() == 38){//上
}
}
public void keyReleased(KeyEvent e){
System.out.println(e.getKeyCode());
}
public static void main(String[] args){
ShutFrame s = new ShutFrame();
}
}//请问我的keyListener为什么总是不起作用呢,怎么改才能有用,还有一个label可以用KeyListener我加了总是移动不起来,如果可以麻烦懂的人写个demo来看看,小弟在此感激不尽..泪牛满面啊
import java.awt.*;
import java.awt.event.*;
public class ShutFrame extends JFrame implements ActionListener,KeyListener{
private JLabel label_1 = null;
private JLabel label_2= null;
private JLabel overTime = null;
private JTextField HH = null;
private JTextField mm = null;
private JTextField ss = null;
private JButton exit = null;
private JButton hide = null;
private JButton start = null;
public ShutFrame(){
label_1 = new JLabel("请输入时,分,秒!");
label_2 = new JLabel("距离关机时间还有:");
overTime = new JLabel("在这里显示时间");
HH = new JTextField(3);
mm = new JTextField(3);
ss = new JTextField(3);
exit = new JButton("退出");
hide = new JButton("隐藏");
start = new JButton("开始");
JPanel jp1= new JPanel();
JPanel jp2= new JPanel();
JPanel jp3= new JPanel();
jp1.add(label_1);
jp1.add(HH);
jp1.add(mm);
jp1.add(ss);
jp2.add(label_2);
jp2.add(overTime);
jp3.add(exit);
jp3.add(hide);
jp3.add(start);
this.setLayout(new GridLayout(3,1));
this.add(jp1);
this.add(jp2);
this.add(jp3);
this.setBounds(200,200,250,200);
hide.addActionListener(this);
this.addKeyListener(this);
this.setVisible(true);
}
public void actionPerformed(ActionEvent e){
this.setVisible(false);
}
public void keyTyped(KeyEvent e){ }
public void keyPressed(KeyEvent e){
System.out.println(e.getKeyCode());
//System.out.println(e.VK_KP_DOWN); if(e.getKeyCode() == 40){//下
}
if(e.getKeyCode() == 39){//右
}
if(e.getKeyCode() == 37){//左
}
if(e.getKeyCode() == 38){//上
}
}
public void keyReleased(KeyEvent e){
System.out.println(e.getKeyCode());
}
public static void main(String[] args){
ShutFrame s = new ShutFrame();
}
}//请问我的keyListener为什么总是不起作用呢,怎么改才能有用,还有一个label可以用KeyListener我加了总是移动不起来,如果可以麻烦懂的人写个demo来看看,小弟在此感激不尽..泪牛满面啊
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