Java Method Overloading and Overriding Quiz
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Questions and Answers

Which type of polymorphism is achieved through method overloading?

  • Static polymorphism
  • Runtime polymorphism
  • Dynamic polymorphism
  • Compile time polymorphism (correct)
  • What is the purpose of method overloading?

  • To achieve compile time polymorphism (correct)
  • To achieve dynamic polymorphism
  • To have multiple implementations of the same interface
  • To allow objects to behave differently in different situations
  • How can you overload a method in Java?

  • By changing the number of arguments or the type of arguments (correct)
  • By changing the access modifier of the method
  • By changing the method name
  • By changing the return type of the method
  • Which method will be called when calling 'multiply(2.5, 3.7)'?

    <p>The method accepting doubles</p> Signup and view all the answers

    Which of the following best describes method overloading in Java?

    <p>Having multiple methods with the same name but different number of arguments and/or different argument types.</p> Signup and view all the answers

    What is the purpose of method overriding in Java?

    <p>To provide a specific implementation of a method in the child class that is already present in the parent class.</p> Signup and view all the answers

    What is the main difference between method overloading and method overriding?

    <p>Method overloading is a compile-time polymorphism, while method overriding is a runtime polymorphism.</p> Signup and view all the answers

    Where does method overriding occur?

    <p>In a child class.</p> Signup and view all the answers

    Study Notes

    Understanding Method Overloading and Method Overriding in Java

    • Method overloading in Java refers to having multiple methods with the same name but different arguments and/or number of arguments.
    • Method overloading allows for the selection of a specific method based on the arguments passed during the method call.
    • Method overriding in Java is a process where a child class provides its own implementation of a method that is already present in its parent class.
    • Runtime polymorphism, also known as dynamic method dispatch, is achieved through method overriding.
    • Method overriding allows for the selection of the overridden method at runtime, based on the actual object type.
    • In method overriding, the implementation of the parent class method in the child class is known as an overridden method.
    • Method overriding is achieved by extending the parent class and providing a different implementation for the method in the child class.
    • The main difference between method overloading and method overriding is that method overloading is a compile-time polymorphism, while method overriding is a runtime polymorphism.
    • Method overloading increases the readability of the program by allowing multiple methods with different arguments in the same class.
    • Method overriding is used to provide a specific implementation of a method in the child class that is already present in the parent class.
    • Method overloading can occur within the same class, while method overriding must be performed between two different classes with inheritance.
    • In method overloading, the methods must have the same name but different signatures, while in method overriding, the methods must have the same name and same signatures.

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    Description

    Test your knowledge of method overloading and method overriding in Java with this quiz. Learn about the differences between these two concepts and understand how they are used in object-oriented programming.

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