Could someone help me with this Java assignment What you nee

Could someone help me with this Java assignment?

What you need to do:
(1) Create the following classes:
• Enumerated types for WrapType, ProteinType, CheeseType, and DressingType as
follows (these should be in separate class files)
public enum CheeseType {
Swiss, Provolone, Cheddar
}
public enum DressingType {
Sweet, Tangy, Spicy
}
public enum ProteinType {
Tofu, Turkey, Salami
}
public enum WrapType {
Wheat, Roll, Lettuce
}
• Sandwich, a concrete class with the following attributes
o wrap (of type WrapEnum)
o protein (of type ProteinEnum)
o cheese (of type CheeseEnum)
o dressing (of type DressingEnum)
o oil (boolean)
o vinegar (boolean)
o a toString() method that prints out what type of wrap, protein, cheese,
dressing, salt, pepper, oil, vinegar is on the sandwich

• SandwichDecorator, an interface with a single method:
public void decorate(Sandwich s);
• SandwichFactory, a singleton which has two methods
o getInstance() a static method that returns access to the SandwichFactory
singleton
o makeSandwich(String name) a factory method that accepts a string
(name of the sandwich) and returns a sandwich of a particular style
§ Acceptable names are
• Italian
o Salami, Roll, Tangy, Provolone
• Veggie
o Tofu, Lettuce, Spicy, Cheddar
• Tuscan
o Turkey, Wheat, Sweet, Swiss

(2) Create two decorator classes that implement the SandwichDecorator interface and
modify sandwiches accordingly
• SaltAndPepperDecorator
o decorate() sets salt & pepper to TRUE for Sandwich objects
• ItalianDecoratorDecorator
o decorate() sets oil & vinegar to TRUE for Sandwich objects

(3) Create a class called SandwichShop, which should contain the following code:
public class SandwichShop {
public static void main(String[] args) {
SandwichFactory f = SandwichFactory.getInstance();
Sandwich s1 = f.makeSandwich(\"Italian\");
Sandwich s2 = f.makeSandwich(\"Veggie\");
Sandwich s3 = f.makeSandwich(\"Tuscan\");
SandwichDecorator spd = new SaltPepperDecorator();
SandwichDecorator id = new ItalianDecorator();
id.decorate(s1);
id.decorate(s3);
spd.decorate(s2);
spd.decorate(s1);
System.out.println(s1);
System.out.println(s2);
System.out.println(s3);

}

}

Solution

Hi,

Please see below the Java classes . Please comment for any queries/feedbacks.

Thanks,

Anita

Sandwich.java

public class Sandwich {
   private WrapType wrap;
   private ProteinType protein;
   private CheeseType cheese;
   private DressingType dressing;
   private boolean oil;
   private boolean salt;
   private boolean pepper;
   private boolean vinegar;
  
   public Sandwich(WrapType wrap,ProteinType protein,CheeseType cheese,DressingType dressing){
       this.wrap =wrap;
       this.protein =protein;
       this.cheese =cheese;
       this.dressing =dressing;
   }
  
  
   //toString method pto print all the details
   public String toString(){
       String outStr =\"Wrap : \"+this.wrap+\", Protein : \"+this.protein+\", Cheese : \"+this.cheese
               +\"Dressing : \"+this.dressing ;
       if(oil){
           outStr = outStr + \", Oil \";
       }
       if(vinegar){
           outStr = outStr + \", Vinegar \";
       }
       if(salt){
           outStr = outStr + \", Salt \";
       }
       if(pepper){
           outStr = outStr + \", Pepper \";
       }
      
       return outStr;
   }

   public WrapType getWrap() {
       return wrap;
   }

   public void setWrap(WrapType wrap) {
       this.wrap = wrap;
   }

   public ProteinType getProtein() {
       return protein;
   }

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

   public CheeseType getCheese() {
       return cheese;
   }

   public void setCheese(CheeseType cheese) {
       this.cheese = cheese;
   }

   public DressingType getDressing() {
       return dressing;
   }

   public void setDressing(DressingType dressing) {
       this.dressing = dressing;
   }

   public boolean isOil() {
       return oil;
   }

   public void setOil(boolean oil) {
       this.oil = oil;
   }

   public boolean isPepper() {
       return pepper;
   }

   public void setPepper(boolean pepper) {
       this.pepper = pepper;
   }

   public boolean isVinegar() {
       return vinegar;
   }

   public void setVinegar(boolean vinegar) {
       this.vinegar = vinegar;
   }

   public boolean isSalt() {
       return salt;
   }

   public void setSalt(boolean salt) {
       this.salt = salt;
   }

}

DressingType,java

public enum DressingType {
   Sweet, Tangy, Spicy
}

CheeseType.java

public enum CheeseType {
   Swiss, Provolone, Cheddar
}

ProteinType.java

public enum ProteinType {
   Tofu, Turkey, Salami
}

WrapType.java

public enum WrapType {
   Wheat, Roll, Lettuce
}

SandwichDecorator.java

public interface SandwichDecorator {
   public void decorate(Sandwich s);
}

SandwichFactory.java

public class SandwichFactory {
   private static SandwichFactory sandwichFacory;

   public SandwichFactory() {
      
   }
  
   public static SandwichFactory getInstance(){
       //to create a static singleton SandwichFactory object
       if(sandwichFacory == null){
           sandwichFacory = new SandwichFactory();
       }
       return sandwichFacory;
   }
  
   public Sandwich makeSandwich(String name){
       //making sandwiches based on the name
       Sandwich sandwich =null;
       if(\"Italian\".equalsIgnoreCase(name)){
           sandwich = new Sandwich(WrapType.Roll,ProteinType.Salami,CheeseType.Provolone,DressingType.Tangy);
       }
       else if(\"Veggie\".equalsIgnoreCase(name)){
           sandwich = new Sandwich(WrapType.Lettuce,ProteinType.Tofu,CheeseType.Cheddar,DressingType.Spicy);
          
       }
       else if(\"Tuscan\".equalsIgnoreCase(name)){
           sandwich = new Sandwich(WrapType.Wheat,ProteinType.Turkey,CheeseType.Swiss,DressingType.Sweet);
       }
      
       return sandwich;
   }
  

}

SaltAndPepperDecorator.java

public class SaltAndPepperDecorator implements SandwichDecorator {

   public SaltAndPepperDecorator() {
   }

   public void decorate(Sandwich s) {
       //Setting salt and pepper options to true
       s.setSalt(true);
       s.setPepper(true);
   }

}

ItalianDecorator.java

public class ItalianDecorator implements SandwichDecorator {

   public ItalianDecorator() {
   }

   public void decorate(Sandwich s) {
       //Setting oil and vinegar options to true
       s.setOil(true);
       s.setVinegar(true);
   }

  
}

SandwichShop.java

public class SandwichShop {
   public static void main(String[] args) {
       //Main class - testing all the sandwhich functionalities
       SandwichFactory f = SandwichFactory.getInstance();
       Sandwich s1 = f.makeSandwich(\"Italian\");
       Sandwich s2 = f.makeSandwich(\"Veggie\");
       Sandwich s3 = f.makeSandwich(\"Tuscan\");
       SandwichDecorator spd = new SaltAndPepperDecorator();
       SandwichDecorator id = new ItalianDecorator();
       id.decorate(s1); //Adding italian decorator to s1
       id.decorate(s3); //Adding italian decorator to s3
       spd.decorate(s2); //Adding Salt and Pepper decorator to s2
       spd.decorate(s1); //Adding Salt and Pepper decorator to s1
       System.out.println(s1);
       System.out.println(s2);
       System.out.println(s3);
   }
}

Sample output:

Wrap : Roll, Protein : Salami, Cheese : ProvoloneDressing : Tangy,Oil ,Vinegar ,Salt ,Pepper
Wrap : Lettuce, Protein : Tofu, Cheese : CheddarDressing : Spicy,Salt ,Pepper
Wrap : Wheat, Protein : Turkey, Cheese : SwissDressing : Sweet,Oil ,Vinegar