Java Swing How to - Store List of string value to JList

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Question

We would like to know how to store List of string value to JList.

Answer

/*// w  w  w  . ja v  a 2s . c  o  m
Java Swing, 2nd Edition
By Marc Loy, Robert Eckstein, Dave Wood, James Elliott, Brian Cole
ISBN: 0-596-00408-7
Publisher: O'Reilly 
 */

// SimpleList2.java
//A variation on SimpleList. This version modifies the selection model used.
//

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.DefaultListSelectionModel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

public class Main extends JPanel {

  String label[] = { "Zero", "One", "Two", "Three", "Four", "Five", "Six",
      "Seven", "Eight", "Nine", "Ten", "Eleven" };

  JList list;

  public Main() {
    setLayout(new BorderLayout());

    list = new JList(label);
    JButton button = new JButton("Print");
    JScrollPane pane = new JScrollPane(list);

    DefaultListSelectionModel m = new DefaultListSelectionModel();
    m.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    m.setLeadAnchorNotificationEnabled(false);
    list.setSelectionModel(m);

    list.addListSelectionListener(new ListSelectionListener() {
      public void valueChanged(ListSelectionEvent e) {
        System.out.println(e.toString());
      }
    });
    button.addActionListener(new PrintListener());

    add(pane, BorderLayout.NORTH);
    add(button, BorderLayout.SOUTH);
  }

  public static void main(String s[]) {
    JFrame frame = new JFrame("List Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(new Main());
    frame.pack();
    frame.setVisible(true);
  }

  // An inner class to respond to clicks on the Print button
  class PrintListener implements ActionListener {
    public void actionPerformed(ActionEvent e) {
      int selected[] = list.getSelectedIndices();
      System.out.println("Selected Elements:  ");

      for (int i = 0; i < selected.length; i++) {
        String element = (String) list.getModel().getElementAt(selected[i]);
        System.out.println("  " + element);
      }
    }
  }
}

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