Topic: 高手们,书中的例子,有本事的来调通! |
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1.高手们,书中的例子,有本事的来调通! | Copy to clipboard |
Posted by: wyvern2004 Posted on: 2005-01-07 22:28 书中的一个例子,但为什么运行不了。 import java.awt.*; import java.awt.event.*; class TestAnonymousClass { private Frame f; private TextField tf; public static void main(String[]argsr) { TestAnonymousClass ac=new TestAnonymousClass(); ac.go(); } public void go() { f=new Frame("AnonymousClass Example"); tf=new TextField(30); f.add(new Label("Click and Drag the "+"mouse"),BorderLayout.NORTH); f.add(tf,BorderLayout.SOUTH); f.addMouseMotionListener(new MouseMotionAdapter(){ public void mouseDragged(MouseEvent e) { String s="Mouse Dragging: X="+e.getX()+" Y="+e.getY(); tf.setText; } }); f.addMouseListener(new MouseClickHandler()); f.setSize(300,200); f.setVisible(true); } } 出现了下面的问题,这是为什么,谢谢了。 F:\java\JavaSun>javac TestAnonymousClass.java TestAnonymousClass.java:27: cannot find symbol symbol : class MouseClickHandler location: class TestAnonymousClass f.addMouseListener(new MouseClickHandler()); ^ 1 error F:\java\JavaSun> 给位高手们帮帮忙,谢谢了。 |
2.Re:高手们,书中的例子,有本事的来调通! [Re: wyvern2004] | Copy to clipboard |
Posted by: Sunteya Posted on: 2005-01-08 22:18 MouseClickHandler 是什么? |
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