import  java.awt.Color;
 import  java.awt.Dimension;
 import  java.awt.Graphics;
 import  java.awt.Rectangle;

 import  javax.swing.JFrame;
 import  javax.swing.JPanel;
 import  javax.swing.JScrollPane;
 import  javax.swing.Scrollable;

 public   class  MainWindow2  extends  JFrame {
	 public  MainWindow2() {
		getContentPane().add( new  JScrollPane( new  TestPane()));
		setSize( 300 ,  300 );
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setVisible(true);
	}

	 public   static   void  main(String[] args) {
		 new  MainWindow2();
	}
}

 class  TestPane  extends  JPanel  implements  Scrollable {
	 protected   void  paintComponent(Graphics g) {
		 super .paintComponent(g);
		g.setColor(Color.WHITE);
		g.fillRect(getX(), getY(), getPreferredSize().width,
				getPreferredSize().height);
		g.setColor(Color.BLACK);
		g.drawRect( 100  + getX(),  100  + getY(),  110  + getX(),  110  + getY());
	}

	 public  Dimension getPreferredSize() {
		 return   new  Dimension( 600 ,  600 );
	}

	 public  Dimension getPreferredScrollableViewportSize() {
		 return  getPreferredSize();
	}

	 public   boolean  getScrollableTracksViewportWidth() {
		 return  false;
	}

	 public   boolean  getScrollableTracksViewportHeight() {
		 return  false;
	}

	 public   int  getScrollableUnitIncrement(Rectangle visibleRect,
			 int  orientation,  int  direction) {
		 return   10 ;
	}

	 public   int  getScrollableBlockIncrement(Rectangle visibleRect,
			 int  orientation,  int  direction) {
		 return   10 ;
	}
}