Set Selection Mode for JList for Single Selection in Java

To set single selection for JList, use DefaultListSelectionModel and set it to SINGLE_SELECTION:

String values[]= { "One","Two","Three","Four","Five","Six"};

JList list = new JList(values);
list.setSelectionMode(DefaultListSelectionModel.SINGLE_SELECTION);

The following is an example to set the selection mode for JList only for single selection:

Example

package my;
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
class SwingDemo extends JFrame {
   static JFrame frame;
   static JList list;
   public static void main(String[] args) {
      frame = new JFrame("JList Demo");
      SwingDemo s = new SwingDemo();
      JPanel panel = new JPanel();
      String values[]= { "One","Two","Three","Four","Five","Six"};
      list = new JList(values);
      list.setSelectionMode(DefaultListSelectionModel.SINGLE_SELECTION);
      panel.add(list);
      frame.add(panel);
      frame.setSize(550,300);
      frame.setVisible(true);
   }
}

The output is as follows. Now, you can only select a single item

Output