Working With Abstract Class

1) Can abstract class have constructors in java.....

Yes
No
May be
depends on program

2) Which of these keywords are used to define an abstract class.....

abst
abstract
Abstract
None

3) Which of the following is not abstract.....

Thread
Abstractlist
list
All of the above

4) If a class inheriting an abstract class does not define all of its function then it will be known as.....

Abstract
A simple class
Static Class
None

5) which of these package contains abstract keywords.....

java.lang
java.util
java.io
java.system

6) If there is an abstract method in a class then,

class must be abstract class
class may or may not be abstract class
class is generic
None

7) Abstract class can ....... instances.

Never have
Always have
Have array of
Have pointer of

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