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Java Quick Syntax Reference
book

Java Quick Syntax Reference

by Mikael Olsson
January 2018
Intermediate to advanced content levelIntermediate to advanced
115 pages
1h 37m
English
Apress
Content preview from Java Quick Syntax Reference
© Mikael Olsson 2018
Mikael OlssonJava Quick Syntax Referencehttps://doi.org/10.1007/978-1-4842-3441-9_12

12. Inheritance

Mikael Olsson1 
(1)
Hammarland, Länsi-Suomi, Finland
 

Inheritance allows a class to acquire the members of another class. In the following example, Apple inherits from Fruit. This is specified with the extends keyword. Fruit then becomes the superclass of Apple, which in turn becomes a subclass of Fruit. In addition to its own members, Apple gains all accessible members in Fruit, except for its constructors:

// Superclass (parent class)
class Fruit
{
  public String flavor;
}
// Subclass (child class)
class Apple extends Fruit
{
  public String variety;
}

Object

A class in Java may only inherit from one superclass, and if no class is ...

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ISBN: 9781484234419Purchase LinkPublisher Website