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Q.What is static in java?

Static means one per class, not one for each object no matter how many instance of a class might exist.
This means that you can use them without creating an instance of a class.
Static methods are implicitly final, because overriding is done based on the type of the object, and static methods are attached to a class, not an object.
A static method in a superclass can be shadowed by another static method in a subclass, as long as the original method was not declared final.
However, you can't override a static method with a nonstatic method.
In other words, you can't change a static method into an instance method in a subclass.
Static varibales are not serialized.

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