Write a method named areaCircle, with the following requirements:

a$)$ public and static

b$)$ has a formal parameter type 'double'$$

c$)$ returns a value type "double"

e$)$ if the value of the formal parameter is positive, return the area of a circle with such radius

f$)$ if the value of the formal parameter is negative or zero, print "Invalid radius" and return zero

Note: just need to write the method, not the main$()$ program