Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Java Java Objects (Retired) Harnessing the Power of Objects Methods and Constants

Posted by stefanrouth
stefanrouth
683 Points

help using classes

i need help i need a way to use dog_food bacon = new dog_food ("Bacon"); witch is created in the main class in the dog class for the method dog.Eat() so my dog can eat bacon also how would i remove the bacon after the dog eats it so it will apply to the laws of physics and not be infinite. i also need to know how to use arguments in methods

4 Answers

Daniel Santos
Daniel Santos
34,969 Points

Hi Stefan,

I am not sure if this is what you want, but I gave it a try. Craig Dennis can you check if what I am doing is fine?

This is your DogFood class:

public class DogFood {
    private String mFood = "";

    public DogFood(String food){
        mFood = food
    }

    public String serveFood(){
        return mFood;
    }
}

This is the Dog class:

public class Dog{
    private String mDogName = "";
    private String mBreed = "";
    private String mEating = "nothing";

    public Dog(String dogName, String breed){
        mDogName = dogName;
        mBreed = breed;
    }

    public void eat(String foodName){
        mEating = foodName;
    }

    public void removeFood(){
        mEating = "nothing";
    }

    public String isEating(){
        return "The dog is eating " + mEating; 
    }
}

And finally, main:

public static void main(String[] args) {

    Dog dog = new Dog("Tommy", "German Shepard")

    DogFood dog_food = new DogFood("Beacon");

    dog.eat(dog_food.serveFood);

}

-Dan

stefanrouth
stefanrouth
683 Points

Thanks this was very helpful

stefanrouth
stefanrouth
683 Points
stefanrouth
stefanrouth
683 Points

cool i can finally feed my java dog (=

Daniel Santos
Daniel Santos
34,969 Points

The doggy can eat! Hehehe

Craig Dennis
STAFF
Craig Dennis
Treehouse Teacher
Craig Dennis
Craig Dennis
Treehouse Teacher

Wow you guys took eating your own dog food. to a whole new level.

That's one way to do it for sure. You can always model whatever you need. How about a Bowland store the number of kibbles in it.

Main.java 
Bowl bowl = new Bowl();
Dog dog = new Dog();
bowl.fill();
while (!bowl.isEmpty()) {
   dog.eatFrom(bowl);
}

Love that you are thinking through this stuff! Just like the "We built this city" earworm....sorry ;)

Tim Jeffries
Tim Jeffries
1,831 Points
Tim Jeffries
Tim Jeffries
1,831 Points

On the DogFood class, the 5th line, I notice there isn't an ";". Won't that break the code?