Dynamically adding amount of objects in one jTable deppending on rows of another

[Scott Hague]

I am basically creating a type of register where there is two JTables, the first JTable retrives data from a MYSQL database and the second JTable is just full of rows with a boolean tick box in it so that they can be classed as present or not. I have tryed a few things but so far nothing has worked and i am wondering if its something to do with my code for setting the amount of rows then porting them into JTable2:

Code used for creating the Object[][] in order to put into the JTable:

    
    public static ArrayList<Object> Array = new ArrayList<Object>();
    public static Object[][] rowAmount;
    public static Object presentArray[][];


public static void presentRowCount() {
        System.out.println("In Main.presentRowCount: ");
        try {
            for (int r = 0; r < FillTable.myModel().getRowCount(); r++) {
                Array.add("{null}");
            }
            
            int i = FillTable.myModel().getRowCount();
            presentArray = new Object[i][i];
            Array.toArray(presentArray);
            System.out.println("Array: " + Array);
            System.out.println("Array --> presentArray[" + i + "]");
            System.out.println("presentArray: " + presentArray);
            rowAmount = Arrays.asList(presentArray).toArray(new Object[presentArray.length][]);
            System.out.println("presentArray --> rowAmount: " + rowAmount);

        } catch (Exception ex) {
            System.err.println("Main.presentRowCount: " + ex);
        }
    }

i am then just customising the code for the JTable model in Netbeans by using

jTable2.setModel(new javax.swing.table.DefaultTableModel(
    new Object [][] {
    Main.getRowAmount();
},
    new String [] {
        "Present"
    }

any help on what im doing wrong?