Create a split pane which divides the frame into two parts. The first part possseses a list and on selecting an item in a list, the item should be displayed in the other portion.

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
public class pract4 
{  
	public static void main(String[] args)
	{  
		JFrame frame = new SplitPaneFrame();
		frame.show();
   }
}
class SplitPaneFrame extends JFrame  implements ListSelectionListener
{   
	public SplitPaneFrame()
	{
		setSize(400, 300);
		list = new JList(texts);
		list.addListSelectionListener(this);
		description = new JTextArea();
		JSplitPane innerPane= new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, list, description);
		getContentPane().add(innerPane, "Center");   
	}
   public void valueChanged(ListSelectionEvent event)   
   {  
	   JList source = (JList)event.getSource();      
	   Display value = (Display)source.getSelectedValue();      
	   description.setText(value.getDescription());
   }
   private JList list;
   private JTextArea description;
   private Display[] texts =      
	   { 
		   new Display("Text1", "This is text1."),         
		   new Display("Text2", "This is text2."),	         
		   new Display("Text3", "This is text3."),	         
		   new Display("Text4", "This is text4.")         
	   };
}
class Display
{  
	public Display(String n, String t)
	{    
		name = n;        
		des = t;     	
	}  
	public String toString()   
	{
		return name;   
	}   
	public String getDescription()   
	{		
		return des;   
	}   
	private String name;   
	private String des;
}

Posted By Kaushal Prajapti