Java Objective Questions Answers -Chapter 1

  • 29. After the compilation of the java source code, which file is created by the JVM

    1. .class
    2. .java
    3. .cdr
    4. .doc
    Answer And Explanation

    Answer: Option A

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  • 30. pow () is associated with which class

    1. Math class
    2. Input stream class
    3. Object class
    4. None of above
    Answer And Explanation

    Answer: Option A

  • 31. Constructor has return type

    1. True
    2. False
    Answer And Explanation

    Answer: Option B

  • 32. x=x+1 is equivalent to

    1. ++x
    2. x++
    3. x=x-1
    4. None of these
    Answer And Explanation

    Answer: Option B

  • 33. If method have same name as class name and method don’t have any return type then it is known as

    1. Destructors
    2. Object
    3. Variable
    4. Constructor
    Answer And Explanation

    Answer: Option D

  • 34. Methods that have same name, but different Parameter list and different definition known as

    1. Overriding
    2. Constructor
    3. Overloading
    4. none of these
    Answer And Explanation

    Answer: Option C

  • 35. Inheritance means

    1. Sub class extends super class
    2. Sub class extends Base class
    3. Sub class create object of super class
    4. All of the above
    Answer And Explanation

    Answer: Option A