Java Programming Concepts Quiz
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Questions and Answers

Which of the following is NOT a primitive data type in Java?

  • int
  • float
  • boolean
  • String (correct)

    • What is the purpose of the 'this' keyword in Java?

  • Refers to a superclass instance
  • Refers to the current class instance (correct)
  • Refers to an object of another class
  • Refers to a subclass instance

    • Which of the following best describes method overloading in Java?

  • Using methods from an interface in a class
  • Creating multiple methods with the same name but different parameters within the same class (correct)
  • Overriding a method in a subclass to provide a new implementation
  • Creating multiple methods with the same name and parameters within the same class

    • Why does Java not support multiple inheritance and hybrid inheritance?

    <p>To avoid ambiguity and complexity in method resolution</p> Signup and view all the answers

    What is the main difference between an interface and an abstract class in Java?

    <p>An abstract class can have method implementations, while interfaces cannot</p> Signup and view all the answers

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