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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_11

11. Static

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

The static keyword is used to create fields and methods that can be accessed without having to make an instance of the class. Static (class) members only exist in one copy, which belongs to the class itself, whereas instance (non-static) members are created as new copies for each new object. That means static methods can’t use instance members because these methods aren’t part of an instance. On the other hand, instance methods can use both static and instance members:

class MyCircle
{
  float r = 10;            // instance field
  static float pi = 3.14F; // static/class field
  // ...
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Publisher Resources

ISBN: 9781484234419Purchase LinkPublisher Website