Question

programming in JAVA,,

Declare a class Dog, objects of which have attributes age and name. The class has one constructor that initializes both attributes. Dog class has method bark. Objects of Dog respond to bark method by printing of "HOOF" in case when dog object's age is > 5 and "HOOF,  HOOF ,  HOOF " if the age is less than 5.

Answer 1

class Dog

{

    public int age;

    public String name;

   

    // constructor

    Dog()

    {

        this.age = 0;

        this.name = "";

    }

   

    // constructor

    Dog(String name, int age)

    {

        this.age = age;

        this.name = name;

    }

   

    public void bark()

    {

        // "HOOF" in case when dog object's age is > 5

        if( this.age > 5)

            System.out.println("HOOF");

        // "HOOF, HOOF , HOOF " if the age is less than 5

        else

            System.out.println("HOOF, HOOF , HOOF ");

    }

   

    public String toString()

    {

        return "Name : " + this.name + "\nAge : " + String.valueOf(this.age) + "\n";

    }

   

    public static void main(String[] args)

    {

        // create object of class dog

        Dog ob1 = new Dog("Shiro", 2);

        Dog ob2 = new Dog("Bruno", 6);

       

        System.out.print(ob1);

        ob1.bark();

      

        System.out.print("\n\n" + ob2);

        ob2.bark();

    }

}

Sample Output