Write a class Cow that keeps track of the current weight of

Write a class Cow that keeps track of the current weight of a cow (as an \"int\" value, in pounds). The Cow class should have a constructor, set and get methods, and a toString method. Your Cow class should work with the following code:

public class TestCows
{
   public static void main(String [] args)
   {
      Cow spot = new Cow(650);
      Cow milkie = new Cow(770);
     
      milkie.setWeight(780);
     
      System.out.println(\"Milkie weighs: \" + milkie.getWeight());
     
      System.out.println(spot);   // generates toString output
      System.out.println(milkie);
   }
}

to generate the following output:

Milkie weighs: 780
cow that weighs 650 pounds
cow that weighs 780 pounds

Use good style and encapsulation (do not let the weight ever go to a negative value -- it should always be zero or larger). You do not have to include import statements or any comments.

Solution

Hi, Please find my implementation.

Please let me know in case of any issue.

########## Cow.java #############

public class Cow {

   // instance variable

   private int weight;

   // constructor

   public Cow(int w){

       weight = w;

   }

   // getter and setter

   public int getWeight() {

       return weight;

   }

   public void setWeight(int weight) {

       this.weight = weight;

   }

   // toString method

   @Override

   public String toString() {

       return \"cow that weighs \"+weight+\" pounds\";

   }

}

############# TestCows.java #########

public class TestCows

{

   public static void main(String [] args)

   {

Cow spot = new Cow(650);

Cow milkie = new Cow(770);

milkie.setWeight(780);

System.out.println(\"Milkie weighs: \" + milkie.getWeight());

System.out.println(spot); // generates toString output

System.out.println(milkie);

   }

}

/*

Sample output:

Milkie weighs: 780

cow that weighs 650 pounds

cow that weighs 780 pounds

*/