Using a variable while creating an object

Question

I have 8 buttons called b0 to b8
Button b0 = new Button (frame, 10, 10, 50, 50,"",'0');
Button b1 = new Button (frame, 70, 10, 50, 50,"",'1');
Button b2 = new Button (frame, 130, 10, 50, 50,"",'2');
Button b3 = new Button (frame, 10, 70, 50, 50,"",'3');
Button b4 = new Button (frame, 70, 70, 50, 50,"",'4');
Button b5 = new Button (frame, 130, 70, 50, 50,"",'5');
Button b6 = new Button (frame, 10, 130, 50, 50,"",'6');
Button b7 = new Button (frame, 70, 130, 50, 50,"",'7');
Button b8 = new Button (frame, 130, 130, 50, 50,"",'8');Rather then create them seperately a for loop would make more sense I think. Something like
for (int i = 0; i < 9; i++) {
                int x = (i % 3) * 60 + 10;
                int y = (i / 3) * 60 + 10;
                Button "b"+i = new Button (frame, x, y, 50, 50,"",i);
            }But I cant make this work, what am I doing wrong.
Thanks

Answer 1

Variable names don't mean much in Java. Certainly you can't do operations on them like
    Button "b"+iBut your buttons do form a sort of group or unit - they are geometrically related for one thing. What you need to do is create an object that represents this group.
Try using an array.
Declare an array of 9 buttons. Then you can use a for loop much like you have. But instead of talking about "b"+i, you would talk about b.
Anything you were doing before with b2 you can still do - by referring to that Button as b[2].