Can class variables be static?

Class variables are also known as static variables , and they are declared outside a method, with the help of the keyword ‘static’. Static variable is the one that is common to all the instances of the class. A single copy of the variable is shared among all objects.

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Can a class be made static?

These are called Nested Classes. Classes can be static which most developers are aware of, henceforth some classes can be made static in Java . Java supports Static Instance Variables, Static Methods, Static Block, and Static Classes. The class in which the nested class is defined is known as the Outer Class.

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