线程的Timer/TimerTask/时间调度器

Timer t = new Timer();
t.schedule(new TimerTask() {
@Override
public void run() {
System.err.println("Hello..");
}
}, 0, 1000);

public class Demo06 {
public static void main(String[] args) {
Calendar cal = Calendar.getInstance();
cal.set(2015, 11, 3, 20, 34, 40);
Timer t = new Timer();
t.schedule(new TimerTask() {
@Override
public void run() {
System.err.println("Hello..");
}
}, cal.getTime());
}
}