Object[][] data = new Object[ID.length][];

    for (int i = 0; i < data.length; i++) {
        data[i] = new Object[] { firstName[i], lastName[i], ID[i], new Boolean(true) };
    }

    final String[] columnName = new String[] { "First name", "Last name", "ID number", "Present" };

    myTable.setModel(new javax.swing.table.DefaultTableModel(data, columnName));