Question

Need help extending and constructing this problem in JAVA using the given guidelines.

public class gatorade {

public void nutrition() {
System.out.println("nutrition facts method");
System.out.println("90 Calories");
System.out.println("0 Grams Fat");
System.out.println("20 MG Sodium");
System.out.println("18 Grams Sugar");
System.out.println("0 Grams Protein");
}
}
//inheritance
public class blueberry extends gatorade{
System.out.println("Color is blue");

public class orange extends gatorade{
System.out.println("Color is orange");

public class lemonlime extends gatorade{
System.out.println("Color is yellow");

public class fruitpunch extends gatorade{
System.out.println("Color is red");

________________________________________________________

Write one application program by using the following requirements:

1) Exception handling

2) Inheritance

a) At least one superclass or abstract superclass: this class needs to have data members, accessor, mutator, and toString methods

b) At least one subclass: this class also needs to have data members, accessor, mutator, and toString methods

c) At least one interface: this interface needs to have at least two abstract methods

d) At least one method overloading

e) At least one method overriding

f) At least one static member and one static method

g) Polymorphism: you need to have at least one superclass reference to reference objects of a subclass

3. Within your application, please include comments at the places where you use the above items.

Answer 1

Program

interface Nutrition{//interface with two methods
   public void getNutrition();
   public void showColor();
}

class Gatorade implements Nutrition{
   protected int calories, fat, protein;
   protected static String color = "Orange";//static variable

   public Gatorade(int calories, int fat, int protein) {
       this.calories = calories;
       this.fat = fat;
       this.protein = protein;
   }
  
   //acessor mutator
   public int getCalories() {
       return calories;
   }

   public void setCalories(int calories) {
       this.calories = calories;
   }

   public int getFat() {
       return fat;
   }

   public void setFat(int fat) {
       this.fat = fat;
   }

   public int getProtein() {
       return protein;
   }

   public void setProtein(int protein) {
       this.protein = protein;
   }

   public static String getColor() {//static method
       return color;
   }

   public static void setColor(String color) {
       Gatorade.color = color;
   }
  
   @Override
   public String toString() {//toString method
       return "gatorade [calories=" + calories + ", fat=" + fat + ", protein=" + protein + "]";
   }

   @Override//implementing the interface
   public void getNutrition() {
       System.out.println("nutrition facts method");
       System.out.println(calories+" Calories");
       System.out.println(fat+" Grams Fat");
       System.out.println(protein+" Grams Protein");
   }

   @Override
   public void showColor() {
       System.out.println("Default Color is "+color);
   }

}

//inheritance
class Blueberry extends Gatorade implements Nutrition{
   private int sodium, sugar;

   public Blueberry(int calories, int fat, int protein, int sodium, int sugar) {
       super(calories, fat, protein);
       this.sodium = sodium;
       this.sugar = sugar;
   }
   //overloading method/constructor
   public Blueberry(int calories, int fat, int protein, int sodium, int sugar, String color) {
       super(calories, fat, protein);
       this.sodium = sodium;
       this.sugar = sugar;
       Blueberry.color = color;
   }

   public int getSodium() {
       return sodium;
   }

   public void setSodium(int sodium) {
       this.sodium = sodium;
   }

   public int getSugar() {
       return sugar;
   }

   public void setSugar(int sugar) {
       this.sugar = sugar;
   }
  
   @Override
   public void getNutrition() {
       System.out.println("nutrition facts method");
       System.out.println(calories+" Calories");
       System.out.println(fat+" Grams Fat");
       System.out.println(protein+" Grams Protein");
       System.out.println(sodium+" MG Sodium");
       System.out.println(sugar+" Grams Sugar");
   }
  
   @Override
   public void showColor() {
       System.out.println("The Color is "+color);
      
   }

   @Override
   public String toString() {
       return "Blueberry [sodium=" + sodium + ", sugar=" + sugar + ", calories=" + calories + ", fat=" + fat
               + ", protein=" + protein + "]";
   }
}

public class Test {// driver class
   public static void main(String[] args) {
       try {//exception handling
           Gatorade obj = new Gatorade(52, 12, 16);
           System.out.println(obj);
           System.out.println("\nBlackBerry");
           //polymorphism
           obj = new Blueberry(32, 2, 12, 14, 30, "Blue");
           System.out.println();
           obj.getNutrition();
           System.out.println();
           obj.showColor();
       }
       catch(NumberFormatException e) {
           e.printStackTrace();
       }

   }
}

Output