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CSE MCQs :: Java 8

Java 8 -
  1. PermGen space has been replaced with which of these in Java 8
    2. A.
    PermSpace
    B.
    PermSpaceGen
    C.
    Metaspace
    D.
    MetaGenSpace

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  2. Which of the following does not belong: If a class inherits from some other class, it should
    3. A.
    Make use of the parent class's capabilities
    B.
    Over-ride or add the minimum to accomplish the derived class' purpose
    C.
    Over-ride all the methods of its parent class
    D.
    Make sure the result IS-A-KIND-OF" its base class

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  3. Using which keyword we can access a value of the instance variables and class variables of that class inside the method of that class itself.
    4. A.
    Super
    B.
    Final
    C.
    This
    D.
    Either super or this

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  4. Example of functional interfaces
    5. A.
    java.util.concurrent.Callable
    B.
    java.lang.Runnable
    C.
    All
    D.
    None

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  5. Which is aggregate operation in Java 8
    6. A.
    filter
    B.
    map
    C.
    forEach
    D.
    All

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  6. If a variable is declared final, it must include ¦¦¦¦¦¦¦. value.
    7. A.
    integer
    B.
    no
    C.
    initial
    D.
    float

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  7. What is the return type of lambda expression?
    8. A.
    String
    B.
    Object
    C.
    void
    D.
    Function

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  8. Which statement is true regarding an object?
    9. A.
    An object is what classes instantiated are from
    B.
    An object is an instance of a class
    C.
    An object is a variable
    D.
    An object is a reference to an attribute

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  9. A functional interface acts as target types for which of the following?
    10. A.
    Lambda expression
    B.
    Method reference
    C.
    Constructor reference
    D.
    All of the above

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  10. Which of these does Stream map() operates on
    11. A.
    Class
    B.
    Interface
    C.
    Predicate
    D.
    Function

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