import java.awt.event.*;
import javax.swing.*;
class Timertest {
    public Timertest(){
        mytimeListener listener=new mytimeListener();
        Timer nowtime=new Timer(1000,listener);
        nowtime.start();
    }
    public class mytimeListener implements ActionListener{
        public void actionPerformed(ActionEvent e){ //  运行到这里就停了,提示因为没实现
 //actionPerformed 方法，可是已经实现了啊，谁能帮忙解决一下，谢谢了！
            int i=0;
            i++;
            System.out.println(i);
        }
    }
    public static void main(String args[]){
        new Timertest();
    }
    
}

import java.awt.event.*;
import javax.swing.*;
class Timertest {
    public Timertest(){
        mytimeListener listener=new mytimeListener();
        Timer nowtime=new Timer(1000,listener);
        nowtime.start();
    }
    public class mytimeListener implements ActionListener{
        public void actionPerformed(ActionEvent e){
            int i=0;
            i++;
            System.out.println(i);
        }
    }
    public static void main(String args[]){
        new Timertest();
        try{
            Thread.sleep(2000);
            }
            catch(InterruptedException E)
            {
                System.out.println(E.toString());
                }
    }
   
}

必须把主线程暂停住..要不程序谁主线程结束就结束了

谢谢了，不过能不能详细点啊，我好像没定义线程啊，以前也是这么用的，好像没问题。

再麻烦一下，最好能够提供一下这方面的资料，自己看看。非常感激。

你是没定义线程..但是timer就是个线程啊...它的作用是到时间就唤醒操作

import java.awt.event.*;
import javax.swing.*;
class Timertest {
    public Timertest(){
        mytimeListener listener=new mytimeListener();
        Timer nowtime=new Timer(1000,listener);
        nowtime.setRepeats(false);
        nowtime.start();
        try{
            Thread.sleep(2000);
            }
            catch(InterruptedException E)
            {
                System.out.println(E.toString());
                }
    }
    public class mytimeListener implements ActionListener{
        public void actionPerformed(ActionEvent e){
            int i=0;
            i++;
            System.out.println(i);
        }
    }
    public static void main(String args[]){
        new Timertest();
        
    }
   
}

恩，非常感谢