为了使下列 Applet在运行时显示字符串" Welcome to Java garden .",在下划线处应填入的是( ) import java .awt .* ; import ______________.* ; public class AppletTest4 extends JApplet { JLabel label ; public void init ( ) { Container contentPane = ___________( ) ; label = new JLabel ( ) ; contentPane . add(label) ; } public void start ( ) { label .setText ("Welcome to Java garden.") ; } }
A、javax . swing , new Container
B、java.applet, getContentPane
C、java .applet, new Container
D、javax . swing, getContentPane