Why we use static method in Business Logic?

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Its a good design practice to implement the business logic in static methods.1. static method access is faster, you don't have to create, initialize the instance. 2. you perform some action/manipulaton on the input data and return the result, so why to make it a bulky object, keep it simpler.3. For holding data you have Beans/Data Objects and for holding client information you have session objectThe nature of the business logic implementation should be generic, i.e. it should not depend upon any pre-condition like initializing some variables, etc. For that use Facade or Validators, or context objects. Need more description!!!