Java Swing - 如何創(chuàng)建Virtical JProgressBar

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import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JProgressBar;
class BarThread extends Thread {
  private static int DELAY = 500;
  JProgressBar progressBar;
  public BarThread(JProgressBar bar) {
    progressBar = bar;
  }
  public void run() {
    int minimum = progressBar.getMinimum();
    int maximum = progressBar.getMaximum();
    for (int i = minimum; i < maximum; i++) {
      try {
        int value = progressBar.getValue();
        progressBar.setValue(value + 1);
        Thread.sleep(DELAY);
      } catch (InterruptedException ignoredException) {
      }
    }
  }
}
 
 
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