Java Swing - JProgressBar

Java Swing is a GUI toolkit for developers to create graphical user interfaces for their applications. JProgressBar is a component in the Swing toolkit that provides a visual indication of the progress of a task.

Introduction

JProgressBar is a horizontal bar that fills to indicate the progress of a task. It can be used in various scenarios where a task takes a while to complete and the user needs to know its progress. JProgressBar can be customized by changing its appearance, animation, and text that indicate the progress.

How to use

To use JProgressBar in your application, you first need to import the Swing package:

import javax.swing.*;

Then, create a new instance of JProgressBar:

JProgressBar progressBar = new JProgressBar();

Set the minimum and maximum values of the progress bar:

progressBar.setMinimum(0);
progressBar.setMaximum(100);

Set the current value of the progress bar:

progressBar.setValue(50);

Add the progress bar to your application's JPanel:

JPanel panel = new JPanel();
panel.add(progressBar);

Customization

Appearance

You can customize the appearance of the JProgressBar by changing its color and border:

progressBar.setForeground(Color.BLUE);
progressBar.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));

Animation

You can make the JProgressBar animate by setting its indeterminate value true:

progressBar.setIndeterminate(true);

Text

You can change the text that appears on the progress bar by creating a custom String object and setting it:

String text = "Processing...";
progressBar.setString(text);

Conclusion

In conclusion, JProgressBar is a useful component in Java Swing for displaying the progress of a task in graphical form. It can be customized to fit the needs of various applications.