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Java Swing - 如何控制JSlider的進(jìn)度條

我們想知道如何控制JSlider的進(jìn)度條。 
import java.awt.GridLayout;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.JSlider;
import javax.swing.border.TitledBorder;

public class Main extends JPanel {
  private JProgressBar pb = new JProgressBar();

  private JSlider sb = new JSlider(JSlider.HORIZONTAL, 0, 100, 60);

  public Main() {
    setLayout(new GridLayout(2, 1));
    add(pb);
    sb.setValue(0);
    sb.setPaintTicks(true);
    sb.setMajorTickSpacing(20);
    sb.setMinorTickSpacing(5);
    sb.setBorder(new TitledBorder("Slide Me"));
    pb.setModel(sb.getModel()); // Share model
    add(sb);
  }

  public static void main(String[] args) {
    JPanel p = new Main();

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.getContentPane().add(p);
    frame.setSize(300, 300);

    frame.setVisible(true);
  }
}