________ is a reference type. A class type An interface type An array type A pri
ID: 3909933 • Letter: #
Question
________ is a reference type.
A class type
An interface type
An array type
A primitive type
2, An interface can extend any number of interfaces using the extends keyword.
true
false
3, Which of the following is incorrect?
An abstract class contains constructors.
The constructors in an abstract class should be protected.
The constructors in an abstract class are private.
You may declare a final abstract class.
An interface may contain constructors.
4,The numeric wrapper classes are subclasses of Number.
true
false
Explanation / Answer
1.
Option 1
2.
An interface can extend any number of interfaces using the extends keyword.
True
3.
True Statements:
False
An interface may contain constructors.
Option 4
4.
The numeric wrapper classes are subclasses of Number
True
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