下列程序构造了一个 Swing Applet ,请在下划线处填入正确的代码Import javax.swing.*;Import java.awt.*;Public class SwingApplet extends 【 13 】 {Jlabel l = new Jlabel ( “ This is a Swing Applet. ” );Public void init(){Container contentPane = getContentPane();contentPane.add(1);}}

下列程序构造了一个 Swing Applet ,请在下划线处填入正确的代码

Import javax.swing.*;

Import java.awt.*;

Public class SwingApplet extends 【 13 】 {

Jlabel l = new Jlabel ( “ This is a Swing Applet. ” );

Public void init(){

Container contentPane = getContentPane();

contentPane.add(1);

}

}


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