格林模拟试题二参考答案Java认证考试

文章作者 100test 发表时间 2009:04:30 07:58:48
来源 100Test.Com百考试题网

answer 1)

1) the code will compile and run, printing out the words "my func"

a class that contains an abstract method must be declared abstract itself, but may contain non abstract methods.

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answer 2)

4) the code will compile but will complain at run time that main is not correctly defined

in this example the parameter is a string not a string array as needed for the correct main method

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answer 3)

1) public
2) private
4) transient

the keyword transient is easy to forget as is not frequently used. although a method may be considered to be friendly like in c it is not a java keyword.

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answer 4)

2) the compiler will complain that the base class is not declared as abstract.

if a class contains abstract methods it must itself be declared as abstract

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answer 5)

1) to get to access hardware that java does not know about
3) to write optimised code for performance in a language such as c/c

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answer 6)

4) success in compilation and output of "amethod" at run time.

a final method cannot be ovverriden in a sub class, but apart from that it does not cause any other restrictions.

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answer 7)

4) compilation and execution without error

it would cause a run time error if you had a call to amethod though.