[RESOLVED] placing objects problem

Code:

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                Button1 = new JButton("Button1 ");
                Button1.setSize(100, 30);
                Button1.setLocation(300, 100);
                frame.add(Button1);
                Button2 = new JButton("Button2 ");
                Button2.setSize(100, 30);
                Button2.setLocation(200, 100);
                frame.add(Button2);
                Button3 = new JButton("Button3 ");
                Button3.setSize(100, 30);
                Button3.setLocation(100, 100);
                frame.add(Button3);

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i use that code, the problem is that button3 will cover everything while button 1 and 2 will go where i told them to go... like button3 somehow will become the background... can someone tell me how to fix that?

edit:

if i made it

the Button2 = new JButton("Button2 "); and Button1 = new JButton("Button1 "); and so on in top it would work