Day4Class-vs-Instance.cpp

class Person{
    public:
        int age;
        Person(int initialAge);
        void amIOld();
        void yearPasses();
    };

    Person::Person(int initialAge){
        // Add some more code to run some checks on initialAge
        if(initialAge > 0){
            age = initialAge;
        }
        else{
            cout<<"Age is not valid, setting age to 0."<<endl;
            age = 0;
        }

    }

    void Person::amIOld(){
        // Do some computations in here and print out the correct statement to the console 
        if(age < 13) cout<<"You are young."<<endl;
        else if(age>= 13 && age <18) cout<<"You are a teenager."<<endl;
        else{
            cout<<"You are old."<<endl;
        }
    }

    void Person::yearPasses(){
        // Increment the age of the person in here
        age++;
    }