Write a java method named max that takes any number of integer parameters and return their maximum. (Hint: use vararg) For example, the max method can be called in any of the following ways:

x = max (4) ; // x = 4

x = max (1, 6, 3) ; // x = 6

x = max (5, 1, 5, 7, 9, 2, 20, 15, 13) ; // x = 20

Write a java program called Maximum to demonstrate this method.