October 2021
Intermediate to advanced
131 pages
1h 34m
English
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
// Instance ...
