A veterinary clinic is writing software to be used when tracking the animals the

Question

A veterinary clinic is writing software to be used when tracking the animals they treat. One of the classes they need will be used to process a dog’s weight.

Write a JAVA class Weight that represents a weight in pounds and ounces (both integers).

Note: there are 16 ounces per pound.

1) Determine the necessary private instance variables for the class.

2) Constructors (constructors do not need to validate input)

1. Write a constructor that builds a weight with given pounds and ounces.

2.Write a constructor that builds a weight with pounds only (use zero for the ounces).

3. Write a constructor that takes no arguments and builds a weight of one pound zero ounces.

4. Write a copy constructor that will make a copy of an existing weight.

3) Methods

1. Write a method that will retrieve the pounds for a weight.

2. Write a method that will retrieve the ounces for a weight.

3. Write a method that will give a String representation of the pounds and ounces of a weight (ex: “5 lbs. 2 oz.”).

4. Write a method that can be used to change the pounds of a weight.

5. Write a method that can be used to change the ounces of a weight.

6. Write a method to add a number of ounces to a weight.

7. Write a method to subtract a given percentage from a weight.

8. Write a method that will determine whether or not a weight is heavy (greater than 92 and ½ pounds).

9.Write a method that will determine whether or not two weights are equal (have the same pounds and ounces).

10.Write a method that will calculate and return the total weight in ounces.

Explanation / Answer

Please find the required program below: Please find the comments against each line for the description:

class Weight {
  
   //instance variables
   int pounds;
   int ounces;
  
   //constructor
   public Weight(int pounds, int ounces) {
       this.pounds = pounds;
       this.ounces = ounces;
   }
  
   //constructor
   public Weight(int pounds) {
       this.pounds = pounds;
       this.ounces = 0;
   }
  
   //constructor
   public Weight() {
       this.pounds = 1;
       this.ounces = 0;
   }
  
   //copy constructor
   public Weight(Weight w) {
       this.pounds = w.pounds;
       this.ounces = w.ounces;
   }

   //getters and setters
   public int getPounds() {
       return pounds;
   }

   public void setPounds(int pounds) {
       this.pounds = pounds;
   }

   public int getOunces() {
       return ounces;
   }

   public void setOunces(int ounces) {
       this.ounces = ounces;
   }

   //string representation
   @Override
   public String toString() {
       return pounds + " lbs. " + ounces + " oz.";
   }
  
   //add ounces to the weight
   public void addOunces(int ounces) {
       int o = this.ounces + ounces;
       if(o >= 16){
           this.pounds = (o/16);
           this.ounces = o%16;
       }
   }
  
   //subtract percentage from the weight
   public void substract(int percent) {
       int o = (pounds * 16) + ounces;
       int newo = o - (percent/100 * ounces);
       this.pounds = (newo/16);
       this.ounces = newo%16;
   }

   //check whether is heavy or not
   public boolean isHeavy() {
       if(pounds == 92 && ounces >= 50)
           return true;
       else if(pounds > 92)
           return true;
       else
           return false;
   }

   //to compare with other weight
   public boolean equals(Weight other) {
       if (ounces != other.ounces)
           return false;
       if (pounds != other.pounds)
           return false;
       return true;
   }
  
   //get Total Weight In Ounce
   public int getTotalWeightInOunce() {
       return (pounds * 16) + ounces;
   }  
}

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