DIFFERENCE BETWEEN STATIC AND NON-STATIC CONSTRUCTOR

DIFFERENCE BETWEEN STATIC AND NON-STATIC CONSTRUCTOR

            There are some important point about static and non-static constructor it cover the definition, advantages and differences.

1.    The entire constructor that explicitly defined by the keyword static will be static constructor and the rest of all constructor will non-static constructor.

2.    Static constructor never defined implicitly it always defined explicitly by programmer as needed. Where the non-static constructor such as default/parameter-less constructor defined implicitly, if non-static constructor does not define explicitly.

3.    If the variable in class is static then it always initialize by static constructor, non- static constructor never initialize the static variable or static instance variables. Non-static constructor responsible to initialize the non-static variable/field of the class.

4.    Static constructor are implicitly called if we does not call in main class even then it execute immediately after class execution start, where the non-static constructor execute if and only if we called it by instantiating its object and execute each and every time after instantiating the class.

5.    Static constructor always execute before executing the code of main class but even then the main class will be the entry point of project not the static members, because static member does not to instantiating the class object to execute the member. Where the non-static constructor and member always execute after the instantiating/creating the class object.

6.    Static constructor execute only for one time in life cycle of a program , where the non-static constructor execute 0 times if the instance does not created otherwise it execute each and every time the class instance are created.

7.    Static constructor never is parameterized it must be parameter less, because the static constructor implicitly called and always has fixed values and that are declare in that class by static constructor. Whereas the non-static constructor can be parameterized.

8.    Static member can directly access with in a static block. But the non-static always access using class instance.

9.    Static constructor never overloaded, because overloading is done by parameter where static constructor are parameter less constructor. But we can perform overloading in non-static constructor because it can be parameterized.

10. All the class having implicit constructor, here the static constructor is implicitly defied if and only if the class having any static field, otherwise all the implicit constructor of any class will be non-static implicit constructor.

difference between static and non-static constructor c#