JS Map 和 List 的简单实现代码

import java.awt.*;
import javax.swing.*;
public class TimerTest
{
public static void main(String[] args)
{
mytask t=new mytask();
while(true)
{
try
{
Thread.sleep(1800000);//time
t.run();
}catch(Exception e)
{
}
}
}
}
class mytask
{
public void run()
{
try
{
javax.swing.JOptionPane.showMessageDialog(null,"It's time to relax!","tips",2);
}catch(HeadlessException e)
{
}
}
}