阅读下面Applet程序 import javax.swing.*: import java.awt.*: public Class Test SwingApplet extends JApplet { JLabel 1=new JLabel("This is a Swing Applet."); public void init() { ______ } } 程序中下画线处应填入的正确选项是
A.Container contentPane=getContentPane();contentPane.add(1);
B.Jpanel contentPane=new JPanel();contentPane.add(1);
C.contentPane.add(1);
D.add(1);
第2题
系统通过下发『____』消息,告知处于空闲态和连接态的UE,系统消息已经改变。(If the system messages have changed,what message the system will use to inform. UE which are in idle and the connected state『____』?)
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