Jtable not showing column Names

Question

I wrote the following Code and strangely it isn't showing the column Names....
The mistake should be foolish..but i can't figure it out...
can you please help.. or give any alternate way to do the same
import javax.swing.*;
import javax.swing.table.*;
public class test
     public static String[] columnNames = {"User Name","User ID"};
     public static void main(String args[])
          JFrame frame = new JFrame();
          frame.setSize(400, 400);
          DefaultTableModel tabmodel = new DefaultTableModel(columnNames, 15);
          JTable table = new JTable(tabmodel);
          frame.add(table);
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setVisible(true);
}

Answer 1

Hi,
A JScrollPane is needed to display the headers.
import javax.swing.*;
import javax.swing.table.*;
public class TestTable {
    public static String[] columnNames = { "User Name", "User ID" };
    public static void main(String args[]) {
     // PB All GUI creation on the EDT
     SwingUtilities.invokeLater(new Runnable() {
         @Override
         public void run() {
          JFrame frame = new JFrame();
          frame.setSize(400, 400);
          DefaultTableModel tabmodel = new DefaultTableModel(columnNames,
               15);
          JTable table = new JTable(tabmodel);
          // PB frame.add(table);
          frame.add(new JScrollPane(table)); // PB
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setVisible(true);
}Piet