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。
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