🚀 go-pugleaf

I have created a JTable.  However if my table gets too big or if i
resize the application window, the horizontal scrollbar does not appear
at all. The vertical scrollbar works fine. I'm using eclipse. Heres a
copy of the code i'm working with:

import javax.swing.JTable;
import javax.swing.JScrollPane;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.ScrollPaneConstants;

import java.awt.*;
import java.awt.event.*;

public class SimpleTable extends JFrame {

  public SimpleTable() {
      super("Personnel");

      Object[][] data = {
          {"Thomas", "Albanese", "Engineer",
                 "Development", new Integer(10)},
          {"Laura", "Bates", "Administrator",
                     "Benefits", new Integer(4)},
          {"Susan", "Carson", "Director",
                   "Marketing", new Integer(12)},
          {"William", "Delancy", "Instructor",
                     "Support", new Integer (6)}
      };

      String[] columnNames = {"First Name",
                              "Last Name",
                              "Job Title",
                              "Department",
                              "Service (yrs)"};

      JTable perstab = new JTable(data, columnNames);
      perstab.setPreferredScrollableViewportSize(
                             new Dimension(500, 65));
      JScrollPane scrollPane = new JScrollPane(perstab,
      		ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
			ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);

      getContentPane().add(scrollPane,BorderLayout.CENTER);

  }

  public static void main(String[] args) {
      SimpleTable frame = new SimpleTable();
      frame.pack();
      frame.setVisible(true);
  }
}