JTable problem

Question

I'm writing an application that will display info in multiple tables. I thought it would be a good idea to write my own table class. The problem is that only the table data appears, but not the table headers.
Layout.java creates an object of MyTable.java. The "createTable" constructor returns a JPanel wich in turn contains a JTable.
Layout.java (creates the GUI, extends JFrame)
    String[] headers = {"1","2","3","4","5","6"};
    String[][] data = {{"one","two","three","four","five","six"},{"seven","eight","nine","ten","eleven","twelve"}};
    MyTable jt = new MyTable();
    Component table = jt.createTable(data, headers);
    JScrollPane jsp = new JScrollPane(table);
    getContentPane().add(jsp, BorderLayout.CENTER);
MyTable.javapublic Component createTable(String[][] d, String[] h)
    data = d;
    headers = h;
    JPanel contentPane = new JPanel();
    TableModel tm = new AbstractTableModel(){
     public int getRowCount(){return data.length;}
     public int getColumnCount() {return headers.length;}
     public Object getValueAt(int r, int c) {return data[r][c];}
          public String getColumnName(int c) {return headers[c];}
    JTable jt = new JTable(tm);
    jt.setMaximumSize(new Dimension(700,40));
    jt.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
    contentPane.add(jt);
    return contentPane;
}

Answer 1

The table headers are not really part of the table, they are a separate component.
Normally a JTable is added directly to a JScrollPane. The JScrollPane is smart enough to take the column information create a component and add this component to the JScrollPane using the setColumnHeaderView() method of JScrollPane.
In your example you are adding the JTable to a Component and then adding the Component to a JScrollPane so the headers don't get created.
I suggest you add your table to the scrollpane in your createTable() method.