public class MyFrame extends JFrame
{
public MyFrame(String title)
{

    setSize(200, 200);
    setTitle(Integer.toString(super.getSize().width));
    setLayout(new FlowLayout());
    for (int i = 0; i < 5; ++i)
    {
        JButton b = new JButton();
        b.setSize(90,50);
        b.setText(Integer.toString(b.getSize().width));
        this.add(b);![alt text][1]
    }
    this.setVisible(true);
}
}

why if having button widht 90 I'm getting window where three buttons are in one row instead of two?