Learn SplitPane in Java Swing

In this section, you will learn how to create split pane using java swing. For this, we have used JSplitPane class. Basically this class is used to divide two components. Here splitpane separates list and textarea. Using ListSelectionListener class, code will allow you to select list item and you will get the list content on the textarea.

Here is the code Splitpane in Java Swing:

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;

public class SplitPane Example {
   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;
}

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