// Fig. 11.13: ScrollPaneTest.java // Testing class ScrollPane import java.awt.*; import java.awt.event.*; import java.applet.Applet; import com.deitel.jhtp2.ch11.SelfContainedCanvas; public class ScrollPaneTest extends Applet { private SelfContainedCanvas drawCanvas; private ScrollPane drawCanvasScroller; public void init() { drawCanvas = new SelfContainedCanvas(); drawCanvas.setSize( 1000, 1000 ); drawCanvasScroller = new ScrollPane(); drawCanvasScroller.add( drawCanvas ); drawCanvasScroller.setSize( 275, 275 ); add( drawCanvasScroller ); Adjustable horizontal = drawCanvasScroller.getHAdjustable(); horizontal.setUnitIncrement( 4 ); Adjustable vertical = drawCanvasScroller.getVAdjustable(); vertical.setUnitIncrement( 4 ); } }