TimerTask抛不出运行时异常

用J2SE和Android，都运行相同的TimerTask，表现

1. Java代码

import java.util.Timer;import java.util.TimerTask;public class ddd {    public static void main(String[] args) throws Exception {        Timer timer = new Timer();        timer.schedule(new Task(), 10, 1000);    }    static class Task extends TimerTask {        public void run() {            System.out.println("**");            int i = 5 / 0;            System.out.println(i);        }    }}

2. Andrdoi代码

import android.app.Activity;import android.os.Bundle;import java.util.Timer;import java.util.TimerTask;public class ddd extends Activity {    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        Timer timer = new Timer();        timer.schedule(new Task(), 10, 1000);    }    static class Task extends TimerTask {        public void run() {            System.out.println("**");            int i = 5 / 0;            System.out.println(i);        }    }}

?表现为，J2SE程序会因java.lang.ArithmeticException: / by zero挂掉。Android程序会每隔一秒打印一行“**”，就是说错误代码没有抛出异常，而是被简单的忽略掉。

所以，开发TimerTask时要小心的处理异常，把可能抛出的异常都catch住处理掉。