JavaScript String Manipulation Quiz
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Questions and Answers

fruit.substring(2, 5)

  • raw (correct)
  • t
  • t
  • t
  • fruit.substring(0, 3)

  • s
  • str (correct)
  • straw
  • stra
  • fruit.substring(5, 10)

  • be
  • berries (correct)
  • be
  • be
  • fruit.substring(2, 5)

    <p>raw</p> Signup and view all the answers

    Which of the following substrings would fruit.substring(3, 6) return from the string 'strawberries'?

    <p>wber</p> Signup and view all the answers

    What would fruit.substring(0, 9) return from the string 'strawberries'?

    <p>strawberr</p> Signup and view all the answers

    Which one of the following methods allows you to achieve runtime polymorphism in Java?

    <p>Method overriding</p> Signup and view all the answers

    What is the purpose of method overloading in Java?

    <p>To create multiple methods with the same name but different parameters</p> Signup and view all the answers

    What is the difference between method overloading and method overriding in Java?

    <p>Method overloading allows you to create multiple methods with the same name but different parameters, while method overriding allows you to provide a different implementation of a method in a subclass that is already defined in its superclass.</p> Signup and view all the answers

    Study Notes

    String Substring Method

    • fruit.substring(2, 5) would return a substring from index 2 to 4 (exclusive) of the string 'strawberries'.
    • fruit.substring(0, 3) would return a substring from index 0 to 2 (exclusive) of the string 'strawberries'.
    • fruit.substring(5, 10) would return a substring from index 5 to 9 (exclusive) of the string 'strawberries'.
    • fruit.substring(2, 5) would return a substring from index 2 to 4 (exclusive) of the string 'strawberries'.

    Substring Method Examples

    • fruit.substring(3, 6) would return 'raw' from the string 'strawberries'.
    • fruit.substring(0, 9) would return 'strawber' from the string 'strawberries'.

    Java Method Polymorphism

    • Runtime polymorphism in Java can be achieved using method overriding.
    • Method overloading allows multiple methods with the same name to be defined, as long as they have different parameter lists.
    • Method overriding is a feature that allows a subclass to provide a specific implementation for a method that is already defined in its superclass.
    • The main difference between method overloading and method overriding is that overloading is used to provide multiple definitions for a method with the same name, whereas overriding is used to provide a specific implementation for a method that is already defined in a superclass.

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    Description

    Substring Quiz: Test Your Knowledge of String Manipulation in JavaScript

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