Main.java Source code

Introduction

Here is the source code for Main.java

Source

import javax.swing.DefaultListSelectionModel;
import javax.swing.JFrame;
import javax.swing.JList;

public class Main {
    public static void main(String[] args) {
        JFrame f = new JFrame();
        JList list = new JList(new String[] { "one", "two", "three", "four" });
        list.setSelectionModel(new DefaultListSelectionModel() {
            public void setSelectionInterval(int index0, int index1) {
                if (index0 == index1) {
                    if (isSelectedIndex(index0)) {
                        removeSelectionInterval(index0, index0);
                        return;
                    }
                }
                super.setSelectionInterval(index0, index1);
            }

            @Override
            public void addSelectionInterval(int index0, int index1) {
                if (index0 == index1) {
                    if (isSelectedIndex(index0)) {
                        removeSelectionInterval(index0, index0);
                        return;
                    }
                    super.addSelectionInterval(index0, index1);
                }
            }

        });
        f.getContentPane().add(list);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.pack();
        f.setVisible(true);
    }
}