import java.awt.*;
import java.awt.event.*;public class KeyEvent {
public static void main(String[] args) {
new MainFrame().launchFrame();
}
}class MainFrame extends Frame { public void launchFrame() {
this.setBounds(500,100,500,500);
this.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
this.addKeyListener(new MyKeyMoniter());
}
class MyKeyMoniter extends KeyAdapter {
public void keyPressed(KeyEvent e) {
int keyCode = e.getKeyCode();//编译时说找不到,或者没有定义
if(keyCode == KeyEvent.VK_UP) {
System.out.println("OK");
}
}
}
}
import java.awt.event.*;public class KeyEvent {
public static void main(String[] args) {
new MainFrame().launchFrame();
}
}class MainFrame extends Frame { public void launchFrame() {
this.setBounds(500,100,500,500);
this.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
this.addKeyListener(new MyKeyMoniter());
}
class MyKeyMoniter extends KeyAdapter {
public void keyPressed(KeyEvent e) {
int keyCode = e.getKeyCode();//编译时说找不到,或者没有定义
if(keyCode == KeyEvent.VK_UP) {
System.out.println("OK");
}
}
}
}
改成这样强制指定KeyEvent为JDK提供的KeyEvent
当然更好的办法是你的自定义类不要用KeyEvent为名字 public void keyPressed(java.awt.event.KeyEvent e) {
int keyCode = e.getKeyCode();// 编译时说找不到,或者没有定义
if (keyCode == java.awt.event.KeyEvent.VK_UP) {
System.out.println("OK");
}
}