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Tip of the Day
Language: Java Language
Expertise: Beginner
Oct 17, 2000

Static Methods

Question:
What is the purpose of static methods in Java?

Answer:
Static methods can be invoked without an instance of an object. They provide the ability to execute methods in a manner similar to C functions. Utility functions that do not depend on the internal state of a class instance are often implemented as static methods. Application global factory methods are also often implemented as static methods, although it is probably more appropriate to implement them as non-static methods in a factory object for which the application retains a static reference.

Examples of static methods in the Java core APIs include "Thread.sleep()" and all of the methods in "java.lang.System."

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