java - java应用程序和android应用程序之间的ScheduleThreadPoolExecutor和ScheduledFuture有何不同

Question

public class TestingActivity extends Activity implements View.OnClickListener
{
 ScheduledThreadPoolExecutor scheduler = new ScheduledThreadPoolExecutor(1);

ScheduledFuture now = null;
Button roll, continuous, exit, stop;
TextView two, three, four13,four22, five14,five32, six51,six42,six33, seven61,



    public class RollDice extends JFrame implements ActionListener
    {
    ScheduledThreadPoolExecutor scheduler = new ScheduledThreadPoolExecutor(1);

ScheduledFuture now = null;


private static final int WIDTH = 450;
 private static final int HEIGHT = 1100;
priva

这有什么不同，它是同一个程序，它在java应用程序中工作，但在android应用程序中不起作用，但我没有错误