Search item in JList in Java

import java.awt.BorderLayout;
//from w  w w .  ja  v a2 s  .  co  m
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;

public class Main {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Modifying Model");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    String[] items = { "A", "B", "C", "D" };
    JList list = new JList(items);

    String prefix = "b";

    int start = 0;
    
    int index = list.getNextMatch(prefix, start, javax.swing.text.Position.Bias.Forward);
    System.out.println(index);
    JScrollPane scrollPane1 = new JScrollPane(list);
    frame.add(scrollPane1, BorderLayout.CENTER);

    frame.setSize(640, 300);
    frame.setVisible(true);
    
  }
}