Params

Function accept varying number of arguments

Takes a variable number of arguments or even no argument.

if is object, it can accept any data type, can same or different 

Only in 1 Param.

var countCoffee = CupOfCoffee.SumCoffee(mixedCoffee, cupOfCoffee, 234);

public static int SumCoffee(params object[] list)

{

     return list.Count();

}