JSplitPane

Get/Set divider location in JSplitPane

In this example on how to get or set the location of the divider in a JSplitPane component of a Java Desktop Application.

In order to do that you have to follow these steps:

  • Create a new JFrame.
  • Call frame.getContentPane().setLayout(new FlowLayout()) to set flow layout for the frame.
  • Create two String arrays that will containt the contents of the two areas of theJSplitPane.
  • Create two JScrollPane components.
  • Create a new JSplitPane with the above JScrollPane components in each side.
  • Call splitPane.getDividerLocation() to get the divider location.
  • Call splitPane.setDividerLocation() to set the divider location.

Let’s see the code snippet that follows.

package com.javacodegeeks.snippets.desktop;

import java.awt.Dimension;
import java.awt.FlowLayout;

import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;

public class GetSetDividerLocationInJSplitPane {

	private static void createAndShowGUI() {

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

		// Display the window.
		frame.setSize(500, 300);
		frame.setVisible(true);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		// set flow layout for the frame
		frame.getContentPane().setLayout(new FlowLayout());

		String[] options1 = { "Bird", "Cat", "Dog", "Rabbit", "Pig" };
		JList list1 = new JList(options1);

		String[] options2 = { "Car", "Motorcycle", "Airplane", "Boat" };
		JList list2 = new JList(options2);

		JScrollPane scrollPane1 = new JScrollPane(list1);
		JScrollPane scrollPane2 = new JScrollPane(list2);

		JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, scrollPane1, scrollPane2);
		splitPane.setPreferredSize(new Dimension(400, 200));

		// get the current divider location (pixels from left edge)
		int dividerLocation = splitPane.getDividerLocation();

		System.out.println("Divider Location before: " + dividerLocation);

		// set new divider location
		splitPane.setDividerLocation(150);

		System.out.println("Divider Location after: " + splitPane.getDividerLocation());

		frame.getContentPane().add(splitPane);

	}

	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 divider location in JSplitPane component in Java.

Want to know how to develop your skillset to become a Java Rockstar?

Join our newsletter to start rocking!

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

I have read and agree to the terms & conditions

 

Ilias Tsagklis

Ilias is a software developer turned online entrepreneur. He is co-founder and Executive Editor at Java Code Geeks.
Subscribe
Notify of
guest

This site uses Akismet to reduce spam. Learn how your comment data is processed.

0 Comments
Inline Feedbacks
View all comments
Back to top button