Code for a progress bar

Details:

This code initialises and pops up a progress bar. You should call initProgressBar () at the start of where you want the progress bar, then the progress value can be altered by setting the value at relevant points, e.g. pb.setValue(25);. Finally, call dialog.dispose(); at the end to get rid of the bar.

Original author/s: Marc Mettes
Original location/s: Java: A JDialog and JProgressBar Example
License: Creative Commons Attribution License 3.0

Imports and instance variables

	import javax.swing.JDialog;
	import javax.swing.JLabel;
	import javax.swing.JOptionPane;
	import javax.swing.JPanel;
	import javax.swing.JProgressBar;
	
	private JProgressBar pb = new JProgressBar(0,100);
	private JDialog dialog;

Code

	public void initProgressBar () {
	
		pb.setPreferredSize(new Dimension(175,20));
		pb.setString("Working");
		pb.setStringPainted(true);
		pb.setValue(0);

		JLabel label = new JLabel("Progress: ");

		JPanel center_panel = new JPanel();
		center_panel.add(label);
		center_panel.add(pb);

		dialog = new JDialog((Frame)null, "Working ...");
		dialog.getContentPane().add(center_panel, BorderLayout.CENTER);
		dialog.pack();
		dialog.setVisible(true);

		dialog.setLocationRelativeTo(null); // center on screen
		dialog.toFront(); // raise above other java windows

	}