Dog

public class Dog {

    private String name, color, breed;
    private int age, weight;

    // CONSTRUCTOR
    public Dog() {
        this("none entered", "none entered", "none entered",1);
    }

    public Dog(String name, String color, String breed, int age) {
        this.name = name;
        this.color = color;
        this.breed = breed;

        if (age < 1) {
            this.age = 1;
        } else {
            this.age = age;
        }
    }

    public Dog(int weight) {
        this();
        this.weight = weight;
    }

    // Setters
    public void setName(String name) {
        this.name = name;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public void setBreed(String breed) {
        this.breed = breed;
    }

    public void setAge(int age) {
        if (age < 1) {
            this.age = 1;
        } else {
            this.age = age;
        }
    }

    public void setWeight(int weight) {
        if (weight < 1) {
            this.weight = 1;
        } else {
            this.weight = weight;
        }
    }

    // GETTERS
    public String getName() {
        return this.name;
        // or return name;
    }

    public String getColor() {
        return this.color;
    }

    public String getBreed() {
        return this.breed;
    }

    public int getAge() {
        return this.age;
    }

    public int getWeight() {
        return this.weight;
    }

    @Override
    public String toString() {
        return "Dog's name: " + this.name + "\n" +
                "Age: " + this.age + "\n" +
                "Breed: " + this.breed + "\n" +
                "Color: " + this.getColor() + "\n";
    }

    @Override
    public boolean equals(Object other) {
        if (other instanceof Dog) {
            Dog otherDog = (Dog) other;

            return this.name.equalsIgnoreCase(otherDog.name) &&
                    this.color.equalsIgnoreCase(otherDog.getColor()) &&
                    this.breed.equalsIgnoreCase(otherDog.getBreed()) &&
                    this.age == otherDog.getAge();
        } else {
            return false;
        }

    }

}