Jframe resize on right

Question

I have a little problem with JFrame resize. I need to resize a frame when I push a button but I need to take visible the right side of frame.

For default when I resize some JFrame ho show me the left size.

    JButton btnX = new JButton("");
    btnX.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            int x = ((Toolkit.getDefaultToolkit().getScreenSize().width/2)-221);
            int y = (0);
            if(contr==0){
                //frmAsda.setBounds(x, y, 442, 45);
                frmAsda.setBounds(x, y, 100, 170);
                contr=1;
                frmAsda.setBackground(new Color(1.0f,1.0f,1.0f,0.0f));

            } else if (contr==1){
                //frmAsda.setBounds(x, y, 442, 216);
                 frmAsda.setBounds(x, y, 442, 170);
                contr=0;
                frmAsda.setBackground(new Color(0.0f,0.0f,0.0f,0.7f));

            }
        }
    });

from this frame

to this:

Answer 1

Put your Panel into JScrollPane and make ScrollBars not visible. On resize just scroll right.