JSplitPane in Java Swing

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The JSplitPane is commonly used component because it lets you split your window horizontally or vertically in order to create a wide variety of GUI elements to suit your application's needs.

A JSplitPane displays two components, either side by side or one on top of the other. By dragging the divider that appears between the components, the user can specify how much of the split pane's total area goes to each component. You can divide screen space among three or more components by putting split panes inside of split panes

The below program showing how to use JSplitPane in java swing...

/* =========================================================== File Name : JSplitPaneDemo.java WebSite : http://javaproglang.blogspot.in/ Facebook : https://www.facebook.com/AdvanceJavaProgramming Twitter ID : https://twitter.com/AdvanceJava Created By : Bintu Chaudhary =========================================================== */ import java.awt.*; import javax.swing.*; class JSplitPaneDemo extends JFrame { private JSplitPane splitPaneV; private JSplitPane splitPaneH; private JPanel panel1; private JPanel panel2; private JPanel panel3; Color c5=new Color(190,190,240); public JSplitPaneDemo() { setTitle( "Split Pane Application" ); setBackground( Color.gray ); JPanel topPanel = new JPanel(); topPanel.setLayout( new BorderLayout() ); getContentPane().add( topPanel ); // Create the panels createPanel1(); createPanel2(); createPanel3(); panel1.setBackground(c5); panel2.setBackground(c5); panel3.setBackground(c5); // Create a splitter pane splitPaneV = new JSplitPane( JSplitPane.VERTICAL_SPLIT ); topPanel.add( splitPaneV, BorderLayout.CENTER ); splitPaneH = new JSplitPane( JSplitPane.HORIZONTAL_SPLIT ); splitPaneH.setLeftComponent( panel1 ); splitPaneH.setRightComponent( panel2 ); splitPaneV.setLeftComponent( splitPaneH ); splitPaneV.setRightComponent( panel3 ); } public void createPanel1() { panel1 = new JPanel(); panel1.setLayout( new BorderLayout() ); // Add some buttons panel1.add( new JButton( "North" ), BorderLayout.NORTH ); panel1.add( new JButton( "South" ), BorderLayout.SOUTH ); panel1.add( new JButton( "East" ), BorderLayout.EAST ); panel1.add( new JButton( "West" ), BorderLayout.WEST ); panel1.add( new JButton( "Center" ), BorderLayout.CENTER ); } public void createPanel2() { panel2 = new JPanel(); panel2.setLayout( new FlowLayout() ); panel2.add( new JButton( "Button 1" ) ); panel2.add( new JButton( "Button 2" ) ); panel2.add( new JButton( "Button 3" ) ); } public void createPanel3() { panel3 = new JPanel(); panel3.setLayout( new BorderLayout() ); panel3.setPreferredSize( new Dimension( 400, 100 ) ); panel3.setMinimumSize( new Dimension( 100, 50 ) ); panel3.add( new JLabel( "Notes:" ), BorderLayout.NORTH ); panel3.add( new JTextArea(), BorderLayout.CENTER ); } public static void main( String args[] ) { // Create an instance of the test application JSplitPaneDemo mainFrame = new JSplitPaneDemo(); mainFrame.pack(); mainFrame.setVisible( true ); } }

C:\>jdk1.4\bin>javac JSplitPaneDemo.java
C:\>jdk1.4\bin>java JSplitPaneDemo

"Output of JSplitPaneDemo.class"

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Java Swing-II

JOptionPane Class	Input Dialog Boxes	JSliders
JProgressBars	JTables	JTabbedPane
JMenu	JPopupMenu	JToolBar
JFileChooser	JScrollBar	JScrollPane
JRootPane	JTextPane	JTree
JSplitPane	JDesktopPane	JEditorPane