Question

java 中按下 enter键激发事件

Answer 1

import java.awt.AWTEvent;
import java.awt.Toolkit;
import java.awt.event.AWTEventListener;
import java.awt.event.KeyEvent;import javax.swing.JFrame;public class Test { public static void main(String[] args) {

AWTEventListener al=new AWTEventListener() {

@Override
public void eventDispatched(AWTEvent event) {
if(event instanceof KeyEvent){
KeyEvent e=(KeyEvent)event;
if(e.getKeyChar()==KeyEvent.VK_ENTER&&e.getID()==KeyEvent.KEY_RELEASED){
System.out.println("Enter");

}
}
}
};
Toolkit.getDefaultToolkit().addAWTEventListener(al, AWTEvent.KEY_EVENT_MASK);

JFrame f=new JFrame();
f.setVisible(true);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}}只有当程序为焦点是才有效可以参考 http://han.guokai.blog.163.com/blog/static/1367182712010115112612363/ 希望对你有帮助~~