Moving the JSplitPane Divider : JSplitPane « Swing « Java Tutorial

Reset the divider position to that position by calling the resetToPreferredSizes() method of JSplitPane.

  1. Change the dividerLocation property with setDividerLocation(newLocation).
  2. 0.0 and 1.0, representing a percentage of the JSplitPane container width.
Moving the JSplitPane Divider
import java.awt.BorderLayout;

import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JSplitPane;

public class MovingJSplitPaneDivider {
  public static void main(String[] a) {
    JFrame horizontalFrame = new JFrame();

    JComponent topButton = new JButton("Left");
    JComponent bottomButton = new JButton("Right");
    final JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);



    horizontalFrame.add(splitPane, BorderLayout.CENTER);
    horizontalFrame.setSize(150, 150);


With the system-provided look and feel classes, pressing the F8 key allows you to move the divider with the keyboard keys such as Home, End, or the arrows. F8 isn't a modifier like Shift or Alt.

14.50.2.Moving the JSplitPane DividerMoving the JSplitPane Divider
14.50.3.Setting Orientation: JSplitPane.VERTICAL_SPLIT or JSplitPane.HORIZONTAL_SPLITSetting Orientation: JSplitPane.VERTICAL_SPLIT or JSplitPane.HORIZONTAL_SPLIT
14.50.4.Create a left-right split pane
14.50.5.Create a top-bottom split pane
14.50.6.Resizing Components and Working with a One-Touch Expandable DividerResizing Components and Working with a One-Touch Expandable Divider
14.50.7.Nested JSplitPaneNested JSplitPane
14.50.8.Listening for JSplitPane Property ChangesListening for JSplitPane Property Changes
14.50.9.set Divider Location for JSplitPane
14.50.10.Continuously move the divider and resize its child components while the user is dragging the divider
14.50.11.The split pane supports a one-touch-expandable capability that allows the user to conveniently move the divider to either end with a single click
14.50.12.Distributing Space When a JSplitPane Container Is Resized
14.50.13.Getting the Setting the Children in a JSplitPane Container
14.50.14.Customizing a JSplitPane Look and Feel