国开题库

国开题库

Java的集合框架中重要的接口java.util.Collection定义了许多方法。选项中哪个方法不是Collection接口所定义的？

#A.int size()#B.boolean containsAll(Collection c)#C.compareTo(Object obj)#D.boolean remove(Object obj)
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——I've got the system running, but I can't open my file.—"

#A.Let me see if I can get it to work.#B.It's my pleasure.#C.I'm very sorry.
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——It's rather cold in here. Do you mind if I close the window?-_____________________.

#A.Yes, please#B.No, go ahead#C.Sure, please
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It is common practice now ________ the web for resources and information for homework.

#A.to search#B.searching#C.search
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It is better to tell someone to get it .

#A.fix#B.fixed#C.fixing
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It is better to _______ schoolchildren by feeding them good food.

#A.notice#B.neglect#C.witness#D.nourish
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It is believed lifelong learning is a crucial response to the challenge of the global ________ economy.

#A.technology#B.knowledge#C.examination
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It is an open secret _____he is not a qualified manager.

#A.that#B.which#C.what
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It is an open secret ________he is not a qualified manager.

#A.that#B.it#C.what
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It is always raining hard.I’m afraid we have to ____the trip.

#A.put away#B.put off#C.put out#D.put on
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