Java中使用timer

package com.ray.test;
import java.util.Timer;
import java.util.TimerTask;
import android.app.Activity;
import android.os.Bundle;
public class JavaTimer extends Activity {
    Timer timer = new Timer();
    TimerTask task = new TimerTask(){
    public void run() {
            setTitle("hear me?");
    }
        
    };
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        timer.schedule(task, 10000);
    }
}