多选题Which statements concerning the event model of the AWT are true？（）AAt most one listener of each type can be registered with a component.BMouse motion listeners can be registered on a List instance.CThere exists a class named ContainerEvent in package java.awt.event.DThere exists a class named MouseMotionEvent in package java.awt.event.EThere exists a class named ActionAdapter in package java.awt.event.
多选题
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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