Static methods are called functions in many programming languages, each static method is a sequence of statements that are being executed.
public static double sqrt (double c)
Properties of methods:
1.Arguments can pass by value
2. Method name can be overloaded: the same name with different arguments
3.A method can have a single return value but may have multiple return statements.
4.May have a side effect: such as a void main effort
The method can call itself.
Application programming interfaces:
That explains of library methods that are intended to use by others, mostly speaking, it is the static method.