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What is static import?

If we have to use any static variable or method from other class, usually we import the class and then use the method/variable with class name.

import java.lang.Math;

//inside class
double test = Math.PI * 5;
We can do the same thing by importing the static method or variable only and then use it in the class as if it belongs to it.

import static java.lang.Math.PI;

//no need to refer class now
double test = PI * 5;
Use of static import can cause confusion, so it’s better to avoid it. Overuse of static import can make your program unreadable and unmaintainable.
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