자바 스윙 구성 요소 진행 감시 기능 예시

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ProgressMonitor;
import javax.swing.Timer;
public class TestProgressMonitor {
  Timer timer;
  public void init() {
    final SimulatedTargetMi target = new SimulatedTargetMi(1000);
    //                     
    final Thread targetThread = new Thread(target);
    targetThread.start();
    //        
    final ProgressMonitor dialog = new ProgressMonitor(null,
        "      ,             ，         ...", "   ：0.00%", 0,
        target.getAmount());
    //        
    timer = new Timer(300, new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        //                      
        dialog.setProgress(target.getCurrent());
        dialog.setNote("   ：" + target.getPercent());
        //              ”  “  
        if (dialog.isCanceled()) {
          //      
          timer.stop();
          //          
          targetThread.interrupt();
          //     
          System.exit(0);
        }
      }
    });
    timer.start();
  }
  public static void main(String[] args) {
    new TestProgressMonitor().init();
  }
}
//          
class SimulatedTargetMi implements Runnable {
  //         
  private volatile int current;
  //     
  private int amount;
  public SimulatedTargetMi(int amount) {
    current = 0;
    this.amount = amount;
  }
  public int getAmount() {
    return amount;
  }
  public int getCurrent() {
    return current;
  }
  // run             
  public void run() {
    while (current < amount) {
      try {
        Thread.sleep(50);
      } catch (InterruptedException e) {
      }
      current++;
    }
  }
  public String getPercent() {
    return String.format("%.2f", 100.0 * current / amount) + "%";
  }
}

import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.Timer;
 public class TestJProgressBar {
  JFrame frame = new JFrame("www.jb51.net -       ...");
  //          
  JProgressBar bar = new JProgressBar(JProgressBar.HORIZONTAL);
  JLabel tipLabel = new JLabel("  ：", JLabel.LEFT);
  JLabel contentLabel = new JLabel("             ，         ...", JLabel.LEFT);
  JLabel statusLabel = new JLabel(" ", JLabel.CENTER);
   public void init() {
    frame.setLayout(new FlowLayout());
    frame.setResizable(false);
    tipLabel.setFont(new Font("Serif", Font.PLAIN, 14));
    contentLabel.setFont(new Font("Serif", Font.PLAIN, 14));
    statusLabel.setFont(new Font("Serif", Font.PLAIN, 14));
    JPanel panel = new JPanel();
    // fr5.setBorder(new TitledBorder("BoxLayout - Y"));
    panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
    panel.add(tipLabel);
    panel.add(Box.createVerticalStrut(2));
    panel.add(contentLabel);
    panel.add(Box.createVerticalStrut(7));
    panel.add(bar);
    // panel.add(Box.createVerticalGlue());
    panel.add(Box.createVerticalStrut(2));
    panel.add(statusLabel);
    frame.add(panel, 0);
    final SimulatedTarget target = new SimulatedTarget(1000);
    //                     
    final Thread thread = new Thread(target);
    thread.start();
    //               
    bar.setStringPainted(true);
    // bar.setPreferredSize(new Dimension(100, 18));
    //              ,
    bar.setMinimum(0);
    //               
    bar.setMaximum(target.getAmount());
    final Timer timer = new Timer(300, new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        //                value
        bar.setValue(target.getCurrent());
        if (target.getAmount() <= target.getCurrent()) {
          statusLabel.setText("    ,oh yes!");
        }
      }
    });
    timer.start();
    frame.setLocationRelativeTo(null);
    frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    // frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.addWindowListener(new WindowAdapter() {
      @Override
      public void windowClosing(WindowEvent e) {
        thread.interrupt();
        timer.stop();
        //     
        System.exit(0);
      }
    });
    //                                 
    frame.pack();
    frame.setVisible(true);
  }
   public static void main(String[] args) {
    new TestJProgressBar().init();
  }
}
 //          
class SimulatedTarget implements Runnable {
  //         
  private volatile int current;
  //     
  private int amount;
   public SimulatedTarget(int amount) {
    current = 0;
    this.amount = amount;
  }
   public int getAmount() {
    return amount;
  }
   public int getCurrent() {
    return current;
  }
   // run             
  public void run() {
    while (current < amount) {
      try {
        Thread.sleep(20);
      } catch (InterruptedException e) {
      }
      current++;
    }
  }
   public String getPercent() {
    return String.format("%.1f", 100.0 * current / amount) + "%";
  }
}