多項(xiàng)選擇題

Which statements concerning the event model of the AWT are true？（）

A.At most one listener of each type can be registered with a component.
B.Mouse motion listeners can be registered on a List instance.
C.There exists a class named ContainerEvent in package java.awt.event.
D.There exists a class named MouseMotionEvent in package java.awt.event.
E.There exists a class named ActionAdapter in package java.awt.event.

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單項(xiàng)選擇題

What will be the appearance of an applet with the following init（） method？
public void init（） {
add（new Button（"hello"））； }

A.Nothing appears in the applet.
B.A button will cover the whole area of the applet.
C.A button will appear in the top left corner of the applet.
D.A button will appear， centered in the top region of the applet.
E.A button will appear in the center of the applet.

多項(xiàng)選擇題

Which modifiers and return types would be valid in the declaration of a working main（） method for a Java standalone application？（）

A.private
B.final
C.static
D.int
E.abstract

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Which statements concerning the event model of the AWT are true？（）

你可能感興趣的試題

What will be the appearance of an applet with the following init（） method？ public void init（） { add（new Button（"hello"））； }

Which modifiers and return types would be valid in the declaration of a working main（） method for a Java standalone application？（）

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Which statements concerning the event model of the AWT are true？（）

What will be the appearance of an applet with the following init（） method？
public void init（） {
add（new Button（"hello"））； }

Which modifiers and return types would be valid in the declaration of a working main（） method for a Java standalone application？（）