Can't get Single selection to work in jtable using Netbeans

Question

I used the GUI editor to create a jTable to play around and I can't get the single selection to work as it should
I have it set like this:
jTable1.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);The table still selection the rows as if they were set as Multi Interval selection. Anyone could explain why?
Here is the full source
To change this template, choose Tools | Templates
*and open the template in the editor.*
Tableframe.java
Created on Jun 7, 2009, 6:57:57 PM
*package examples;*
@author ME
*public class Tableframe extends javax.swing.JFrame {*
*    /** Creates new form Tableframe */*
*    public Tableframe() {*
*        initComponents();*
*    /** This method is called from within the constructor to
*initialize the form.*
WARNING: Do NOT modify this code. The content of this method is
*always regenerated by the Form Editor.*
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {
        jScrollPane1 = new javax.swing.JScrollPane();
        jTable1 = new javax.swing.JTable();
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        jTable1.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null}
            new String [] {
                "Title 1", "Title 2", "Title 3", "Title 4"
        jTable1.setOpaque(false);
        jTable1.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
        jTable1.setShowHorizontalLines(false);
        jTable1.setShowVerticalLines(false);
        jTable1.getTableHeader().setReorderingAllowed(false);
        jScrollPane1.setViewportView(jTable1);
        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap(13, Short.MAX_VALUE)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 375, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 275, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(25, Short.MAX_VALUE))
        pack();
    }// </editor-fold>
*@param args the command line arguments*
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Tableframe().setVisible(true);
    // Variables declaration - do not modify
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTable jTable1;
    // End of variables declaration
}

Answer 1

I used the GUI editor to create a jTable to play around and I can't get the single selection to work as it should
I have it set like this:
jTable1.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);The table still selection the rows as if they were set as Multi Interval selection. Anyone could explain why?
Here is the full source
To change this template, choose Tools | Templates
*and open the template in the editor.*
Tableframe.java
Created on Jun 7, 2009, 6:57:57 PM
*package examples;*
@author ME
*public class Tableframe extends javax.swing.JFrame {*
*    /** Creates new form Tableframe */*
*    public Tableframe() {*
*        initComponents();*
*    /** This method is called from within the constructor to
*initialize the form.*
WARNING: Do NOT modify this code. The content of this method is
*always regenerated by the Form Editor.*
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {
        jScrollPane1 = new javax.swing.JScrollPane();
        jTable1 = new javax.swing.JTable();
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        jTable1.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null}
            new String [] {
                "Title 1", "Title 2", "Title 3", "Title 4"
        jTable1.setOpaque(false);
        jTable1.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
        jTable1.setShowHorizontalLines(false);
        jTable1.setShowVerticalLines(false);
        jTable1.getTableHeader().setReorderingAllowed(false);
        jScrollPane1.setViewportView(jTable1);
        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap(13, Short.MAX_VALUE)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 375, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 275, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(25, Short.MAX_VALUE))
        pack();
    }// </editor-fold>
*@param args the command line arguments*
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Tableframe().setVisible(true);
    // Variables declaration - do not modify
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTable jTable1;
    // End of variables declaration
}