Which of the following class definitions defines a legal abstract class?

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Question:
Which of the following class definitions defines a legal abstract class?

1.abstract class A { abstract void unfinished(); }

2.abstract class A { abstract void unfinished(); }

3.class A { abstract void unfinished(); }

4.class A { abstract void unfinished() { } }

Posted Date:-2021-10-25 05:21:08

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