Links two JLists so that if an element is clicked on one it is moved to the other list. - Java Swing

Java examples for Swing:JList

  1. HOME
  2. Java
  3. Swing
  4. JList

Description

Links two JLists so that if an element is clicked on one it is moved to the other list.

Demo Code


//package com.java2s;
import javax.swing.DefaultListModel;
import javax.swing.JList;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

public class Main {
    /**//from   ww  w  .  ja  v  a 2 s.  co m
     * Links two JLists so that if an element is clicked on one it is moved to
     * the other list.
     *
     * @param firstList
     * @param secondList
     */
    public static void registerLinkedJListListener(final JList firstList,
            final JList secondList) {
        firstList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        secondList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        final DefaultListModel firstDataModel = (DefaultListModel) firstList
                .getModel();
        final DefaultListModel secondDataModel = (DefaultListModel) secondList
                .getModel();
        firstList.getSelectionModel().addListSelectionListener(
                new ListSelectionListener() {
                    @Override
                    public void valueChanged(ListSelectionEvent e) {
                        if (!e.getValueIsAdjusting()) {
                            Object selectedValue = firstList
                                    .getSelectedValue();
                            firstDataModel.removeElement(selectedValue);
                            secondDataModel.addElement(selectedValue);
                        }
                    }
                });
        secondList.getSelectionModel().addListSelectionListener(
                new ListSelectionListener() {
                    @Override
                    public void valueChanged(ListSelectionEvent e) {
                        if (!e.getValueIsAdjusting()) {
                            Object selectedValue = secondList
                                    .getSelectedValue();
                            secondDataModel.removeElement(selectedValue);
                            firstDataModel.addElement(selectedValue);
                        }
                    }
                });
    }
}

Related Tutorials