单项选择题
A. Public
B. Private
C. Protected
D. Transient
E. No access modifier is required.
单项选择题 Howcanyoucreatealistenerclassthatreceiveseventswhenthemouseismoved?()
多项选择题 import java.awt.*; public class X extends Frame { public static void main (String args) { X x = new X(); x.pack(); x.setVisible(true); } public X() { setLayout (new BordrLayout()); Panel p = new Panel (); add(p, BorderLayout.NORTH); Button b = new Button (“North”); p.add(b): Button b = new Button (“South”); add(b1, BorderLayout.SOUTH): } } Which two statements are true?()
单项选择题 Whichtypeofeventindicatesakeypressedonajava.awt.Component?()