java:cannot be cast to java.awt.event.MouseListener

把Monitor寫到前面，試試

~

~

~~~~~~

import?java.awt.*;

import?java.awt.event.*;

import?java.util.*;

class?JFrameEventTest?extends?Frame{

JFrameEventTest(){

this.addMouseListener(new?Monitor());

}

class?Monitor?extends?MouseAdapter{

public?void?mousePressed(MouseEvent?e){}

}

public?static?void?main(String?argv[]){

new?JFrameEventTest();

}

}

這測試，沒有問題。

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