Write the DECLARATION of a class pet as follows: (HINT: you must INCLUDE this in another file) Data member variables: species, weight, age Functions: default constructor, constructor with parameters...

Write the DECLARATION of a class pet as follows: (HINT: you must INCLUDE this in another file)

Data member variables: species, weight, age
Functions: default constructor, constructor with parameters to set all variables, print, set species, set age, set weight.
Be sure to include any necessary include and using directives.

Include any directives that will prevent compilation errors due to multiple inclusions of a header file