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Questions and Answers
fruit.substring(2, 5)
fruit.substring(2, 5)
- raw (correct)
- t
- t
- t
fruit.substring(0, 3)
fruit.substring(0, 3)
- s
- str (correct)
- straw
- stra
fruit.substring(5, 10)
fruit.substring(5, 10)
- be
- berries (correct)
- be
- be
fruit.substring(2, 5)
fruit.substring(2, 5)
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Which of the following substrings would fruit.substring(3, 6) return from the string 'strawberries'?
Which of the following substrings would fruit.substring(3, 6) return from the string 'strawberries'?
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What would fruit.substring(0, 9) return from the string 'strawberries'?
What would fruit.substring(0, 9) return from the string 'strawberries'?
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Which one of the following methods allows you to achieve runtime polymorphism in Java?
Which one of the following methods allows you to achieve runtime polymorphism in Java?
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What is the purpose of method overloading in Java?
What is the purpose of method overloading in Java?
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What is the difference between method overloading and method overriding in Java?
What is the difference between method overloading and method overriding in Java?
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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
