题目
A.void actionevent(actionPerformed e)
B.void actionPerformed(ActionListener e)
C.void actionListener(ActionEvent e)
D.void actionPerformed(ActionEvent e)
第4题
A.void keyPressed(KeyEvent)
B.void keyReleased(KeyEvent)
C.void keyUpDown(KeyEvent)
D.void keyTyped(KeyEvent)
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