سوال: تایمر در swing

دوستان من میخوام 1ی که گذاشتم روی swing عمل کنه و نمایش داده بشه ، کجای کارم اشتباهه ؟ :متفکر:

package Tamrin;



import javax.swing.*;

import java.awt.*;



public class Swing {



    static Thread thread=new Thread();

    public static int i=0;



    public static void main(String[] args) {



        Swing swing=new Swing();

        swing.ui();





        for (int t=0;t<60;t++){

            try {

                thread.sleep(1000);

                System.out.println(t);

                i--;

            } catch (InterruptedException e) {

                e.printStackTrace();

            }

        }

}





    public void ui(){



Dimension dimension=Toolkit.getDefaultToolkit().getScreenSiz  e();

        int x = dimension.width;

        int y = dimension.height;



        JFrame jFrame=new JFrame("Esm Famil");

        jFrame.setBounds(x/4,y/4,x/2,y/2);

        jFrame.setDefaultCloseOperation(WindowConstants.EX  IT_ON_CLOSE);

        jFrame.setVisible(true);

        jFrame.setLayout(null);



JPanel jPanel=new JPanel(null);

        jPanel.setVisible(true);

        jPanel.setBounds(0,0,x/2,y/2);

        jPanel.setBackground(Color.cyan);

        jFrame.add(jPanel);



        JLabel Timer=new JLabel(String.valueOf(i));

        Timer.setVisible(true);

        Timer.setBounds(x/4,0,50,50);

        Timer.setHorizontalAlignment(JLabel.RIGHT);

        jPanel.add(Timer);



}

}