Create Progress Bar using JProgressBar

Overview

In this tutorial, we will learn steps to create a progress Bar using JProgressBar class. Using JProgressBar we can create a vertical or a horizontal progress bar.

Create Progress Bar

A progress bar is a GUI component that is used to display the progress of a task. For example, the progress of a file download, file copy, file upload, etc.

To import the class in the java program, we can use the following import statement.

import javax.swing.JProgressBar;

To create a progress bar we can use the JProgressBar class.

JProgressBar pBar = new JProgressBar();

Java Program

In this Java program, we will use JProgressBar class to create a simple progress bar.

package com.testingdocs.swing.components;

/**********************************************
 * FileName: ProgressBarDemo.java
 * Package : com.testingdocs.swing.components
 * 
 * Java Tutorials - www.TestingDocs.com
 **********************************************/

import java.awt.*;

import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JProgressBar;
import javax.swing.SwingUtilities;


public class ProgressBarDemo {

 public static void main(String[] args) {
 final int MAX_PERCENT = 100;
 JFrame frame = new JFrame("JProgress -www.TestingDocs.com");

 // Create Progress Bar
 JProgressBar pBar = new JProgressBar();
 pBar.setMinimum(0);
 pBar.setMaximum(MAX_PERCENT);
 pBar.setStringPainted(true);

 // Add Progress Bar
 frame.setLayout(new FlowLayout());
 frame.getContentPane().add(pBar);
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 frame.setSize(500, 500);
 frame.setVisible(true);

 // Update Progress Bar
 for (int i = 0; i <= MAX_PERCENT; i++) {
 final int currentValue = i;
 try {
 SwingUtilities.invokeLater(new Runnable() {
 public void run() {
 pBar.setValue(currentValue);
 }
 });
 java.lang.Thread.sleep(1000);
 } catch (InterruptedException e) {
 JOptionPane.showMessageDialog(frame, e.getMessage());
 }
 }
 }
}