super(true);
label=new JLabel();
setLayout(new BorderLayout());
JScrollBar hbar=new JScrollBar(JScrollBar.HORIZONTAL, 30, 20, 0, 300);
JScrollBar vbar=new JScrollBar(JScrollBar.VERTICAL, 30, 40, 0, 300);
hbar.setUnitIncrement(2);
hbar.setBlockIncrement(1);
hbar.addAdjustmentListener(new MyAdjustmentListener());
vbar.addAdjustmentListener(new MyAdjustmentListener());
add(hbar, BorderLayout.SOUTH);
add(vbar, BorderLayout.EAST);
add(label, BorderLayout.CENTER);