Java Swing How to - Set selected item by index

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Question

We would like to know how to set selected item by index.

Answer

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import java.awt.BorderLayout;

import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;

public class Main {
  static String labels[] = { "A", "B", "C", "D", "E", "F", "G" };

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

    JList jlist = new JList(new String[]{"A","B","C"});
    
    jlist.setSelectedIndex(0);
    JScrollPane scrollPane1 = new JScrollPane(jlist);
    frame.add(scrollPane1, BorderLayout.CENTER);

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

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