Home » Desktop Java » swing » JTabbedPane » Get/Set selected tab in JTabbedPane

About Byron Kiourtzoglou

Byron Kiourtzoglou
Byron is a master software engineer working in the IT and Telecom domains. He is an applications developer in a wide variety of applications/services. He is currently acting as the team leader and technical architect for a proprietary service creation and integration platform for both the IT and Telecom industries in addition to a in-house big data real-time analytics solution. He is always fascinated by SOA, middleware services and mobile development. Byron is co-founder and Executive Editor at Java Code Geeks.

Get/Set selected tab in JTabbedPane

With this tutorial we shall show you how to get or set the selected tab in a JTabbedPane component of a Java Desktop Application.

Basically all you have to do for it is to:

  • Create a new JFrame.
  • Call frame.getContentPane().setLayout(new GridLayout(1, 1) to set up grid layout for the frame.
  • Use JTabbedPane(JTabbedPane.TOP) to get a JTabbedPane.
  • Use tabbedPane.getSelectedIndex() to get the index of the selected tab.
  • Use tabbedPane.setSelectedIndex() to set the index of the selected tab.

Let’s see the code:

package com.javacodegeeks.snippets.desktop;

import java.awt.GridLayout;
import java.awt.Label;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;

public class GetSetSelectedTabInJTabbedPane {

	private static void createAndShowGUI() {

		// Create and set up the window.
		final JFrame frame = new JFrame("Tabbed Pane Example");

		// Display the window.
		frame.setSize(400, 400);
		frame.setVisible(true);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		// set grid layout for the frame
		frame.getContentPane().setLayout(new GridLayout(1, 1));

		JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.TOP);

		tabbedPane.addTab("Tab1", makePanel("This is tab 1"));
		tabbedPane.addTab("Tab2", makePanel("This is tab 2"));
		tabbedPane.addTab("Tab3", makePanel("This is tab 3"));
		tabbedPane.addTab("Tab4", makePanel("This is tab 4"));

		frame.getContentPane().add(tabbedPane);

		// get the currently selected index for this tabbedpane
		int selectedIndex = tabbedPane.getSelectedIndex();
		System.out.println("Default Index:" + selectedIndex);

		// select the last tab
		tabbedPane.setSelectedIndex(tabbedPane.getTabCount()-1);

		selectedIndex = tabbedPane.getSelectedIndex();
		System.out.println("New Index:" + selectedIndex);

	}

	private static JPanel makePanel(String text) {
		JPanel p = new JPanel();
		p.add(new Label(text));
		p.setLayout(new GridLayout(1, 1));
		return p;
	}

	public static void main(String[] args) {

  //Schedule a job for the event-dispatching thread:

  //creating and showing this application's GUI.

  javax.swing.SwingUtilities.invokeLater(new Runnable() {

public void run() {

    createAndShowGUI(); 

}

  });
    }

}

This was an example on how to get and set the selected tab in JTabbedPane component.

(+1 rating, 1 votes)
Start the discussion Views Tweet it!

Do you want to know how to develop your skillset to become a Java Rockstar?

Subscribe to our newsletter to start Rocking right now!

To get you started we give you our best selling eBooks for FREE!

 

1. JPA Mini Book

2. JVM Troubleshooting Guide

3. JUnit Tutorial for Unit Testing

4. Java Annotations Tutorial

5. Java Interview Questions

6. Spring Interview Questions

7. Android UI Design

 

and many more ....

 

Receive Java & Developer job alerts in your Area

 

Leave a Reply

avatar
  Subscribe  
Notify of