Cronometro

Arquivo: ExemploJava.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class ExemploJava extends JFrame {

   private JTextField posicao;
   private JButton play_pause;
   private JButton stop;

   int pos = 0;
   int tempo = 1000;
   boolean Xplay_pause = false;
   String play_pause_text = "Play";

   Long k = (365 * 24 * 60 * 60) * 1L;

   Long z = 0L;
   String s = "";

      public ExemploJava() {

      super("Formulario");
      this.setSize(400,200);
      this.setLocation(50, 100);

      Container ct = this.getContentPane();
      ct.setLayout(null);

      play_pause = new JButton("Play");
      play_pause.setBounds(0,0,100,25);
      ct.add(play_pause);

      stop = new JButton("stop");
      stop.setBounds(101,0,100,25);
      ct.add(stop);

      posicao = new JTextField("0y 0d 00:00:00");
      posicao.setBounds(207,0,120,25);
      ct.add(posicao);

      Image Icone = Toolkit.getDefaultToolkit().getImage("icon.gif");
      setIconImage(Icone);

      this.setVisible(true);

      stop.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent e) {

            int xPos = xStop();
            posicao.setText("0y 0d 00:00:00");

      }});

      play_pause.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent e) {

            play_pause.setText(getPlayPause());

      }});

      this.addWindowListener(new WindowAdapter() {
         public void windowClosing(WindowEvent e) {
            System.exit(0);
      }});

   }
   public static void main(String[] args) {
      new ExemploJava();
   }
public int xStop(){
    pos = 0;
    Xplay_pause = false;
    play_pause.setText("Play");
    return pos;
}

public int xPosicao(int x){
    pos = x;
    return pos;
}

public int xTempo(int x){
    tempo = x;
    return tempo;
}

public String getPlayPause(){
    if(Xplay_pause == false){
        Xplay_pause = true;
        getPlay();
        play_pause_text = "Pause";
    } else {
        Xplay_pause = false;
        play_pause_text = "Play";
    }

    return play_pause_text;

}

public void getPlay(){
    Thread runner = new Thread(new Runnable() {
        public void run() {
            while(Xplay_pause == true) {
                pos = pos + 1;
                try {
                    Thread.sleep(tempo);
                } catch (Exception ex) {}

                k = pos * 1L;

                z = Long.parseLong(""+(k/(365 * 24 * 60 * 60)));
                s = ""+z+"y ";
                k = k % (365 * 24 * 60 * 60);

                z = Long.parseLong(""+(k/(24 * 60 * 60)));
                s = ""+s+z+"d ";
                k = k % (24 * 60 * 60);

                z = Long.parseLong(""+(k/(60 * 60)));
                s = ""+s+ ((z < 10) ? "0" : "") +z+":";
                k = k % (60 * 60);

                z = Long.parseLong(""+(k/(60)));
                s = ""+s+ ((z < 10) ? "0" : "") +z+":";
                k = k % (60);

                z = k % 60;
                s = ""+s+ ((z < 10) ? "0" : "") +z;

                posicao.setText(""+s);
            }
        }});
    runner.start();
}