在新applet窗口（子）中打开倒数计时器

Question

在我的应用程序中，当我点击提交按钮时，新的小程序窗口打开正常，但它只显示在父窗口的文本框中输入的值，倒计时仅在父窗口中发生。单击提交后，我希望在子窗口中进行倒计时（从文本框中输入的值开始）。我在这做错了什么？

    package com.tcs.applet;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.util.Timer;
import java.util.TimerTask;

//import javax.swing.JButton;


public class MyApplet extends Applet implements ActionListener  { 
static int interval;
static Timer timer;
TextField inputLine = new TextField(15);  
private Button button = new Button("Submit");

Label tmpLbl = new Label();


public MyApplet() {
    button.addActionListener(this);

    add(inputLine);
   add(button);

   add(tmpLbl);
 //   button.addActionListener(ActionListener act);  
//      / doCountDown("10");
}

private String doCountDown(String secInput){

    int delay = 1000;
    int period = 1000;
    timer = new Timer();

    interval = Integer.parseInt(secInput);
  //  System.out.println(secs);
    timer.scheduleAtFixedRate(new TimerTask() {

        public void run() {
//                System.out.println(setInterval());
            int tmpTimer=setInterval();

            tmpLbl.setText(Integer.toString(tmpTimer));

        }
    }, delay, period);
        return secInput;

}

private static final int setInterval() {
    if (interval == 1)
        timer.cancel();
    return --interval;
}




 // setup all the context...


    public void actionPerformed(ActionEvent e) {
        // TODO Auto-generated method stub

        Button source = (Button)e.getSource();
        String tmp=e.getActionCommand();
        if (tmp=="Submit"){
             Frame frame = new Frame();
                frame.setSize(1000, 300);
            Label jname=new Label(doCountDown(inputLine.getText())); 
            frame.add(jname);

            int tmpTimer=setInterval(); 
             frame.show();

        }

    } 
}