Can someone describe to me the exact use of static keyword before main module?

Question

I will understand in programming terms as i know C language very well.

Answer 1

In order to use a method inside of a class, an object for that class must be instantiated. Unless the method is made static, in which case, it can be called without an object.
Since main() is inside a class, it must be made static. You can't instantiate an object for its class before the program even starts, can you?

Answer 2

An object is declared from a class. That class is like a blueprint for an object, which describes what behaviors the object can do (methods), and what data properties it has (variables).
Ex: You can have a BankAccount class with an ID, UserName, and Balance as its properties/data, and OpenAccount(), CloseAccount(), Deposit(), and Withdraw() as its behaviors/methods. Every object can access the methods and has its own set of properties.

Making a module (a class or method) static eliminates the need to access a class's methods through an object.
Methods and properties can also be declared as private or public (there's also protected but that's a more advanced topic).
Private means that it can only be used inside the class. Public means it can be accessed through any object.

Answer 3

@Tamra Can you please tell me what an object is? And how is a module made static, what if we use something other than static.