Java Swing - 如何显示在JProgressBar组件上完成的百分比

import javax.swing.JProgressBar;

public class Main {
  public static void main(String[] argv) throws Exception {
    int minimum = 0;
    int maximum = 100;
    JProgressBar progress = new JProgressBar(minimum, maximum);

    // Overlay a string showing the percentage done
    progress.setStringPainted(true);

  }
}