Get and Set the Values of a JProgressBar in Java

import java.awt.BorderLayout;
//from  w w  w  .ja va  2s .co m
import javax.swing.JFrame;
import javax.swing.JProgressBar;

public class Main extends JFrame {

  public Main() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    int minimum = 0;
    int maximum = 100;
    JProgressBar progress = new JProgressBar(minimum, maximum);
    // Get the current value
    int value = progress.getValue();
    System.out.println(value);
    // Get the minimum value
    int min = progress.getMinimum();
    System.out.println(min);
    // Get the maximum value
    int max = progress.getMaximum();
    System.out.println(max);
    // Change the minimum value
    int newMin = 0;
    progress.setMinimum(newMin);

    // Change the maximum value
    int newMax = 256;
    progress.setMaximum(newMax);

    // Set the value; the new value will be forced into the bar's range
    int newValue = 33;
    progress.setValue(newValue);
    
    
    getContentPane().add(progress, BorderLayout.NORTH);
    pack();
    setVisible(true);
  }

  public static void main(String arg[]) {
    new Main();
  }
}