Question

Problem

Write in drjava is fine.

Using the classes from Assignment #2, do the following:

1. Modify the parent class (Plant) by adding the following abstract methods:
   1. a method to return the botanical (Latin) name of the plant
   2. a method that describes how the plant is used by humans (as food, to build houses, etc)
2. Add a Vegetable class with a flavor variable (sweet, salty, tart, etc) and 2 methods that return the following information:
   1. list 2 dishes (meals) that the vegetable can be used in
   2. where this vegetable is grown

The Vegetable class should have the usual constructors (default and parameterized), get (accessor) and set (mutator) methods for each attribute, and a toString method

Child classes should call parent methods whenever possible to minimize code duplication.

The driver program must test all the methods in the Vegetable class, and show that the new methods added to the Plant class can be called by each of the child classes. Include comments in your output to describe what you are testing, for example   System.out.println(“testing Plant toString, accessor and mutator”);. Print out some blank lines in the output to make it easier to read and understand what is being output.

Assignment Submission:

Submit a print-out of the Plant and Vegetable classes, the driver file and a sample of the output. Also include a UML diagram of the classes involved. (Use tables in Word to create the various classes. Remember to use the correct arrows between the classes)

Marking Checklist

1. Does EACH class have all the usual methods?
2. Are all methods in EACH class tested, including child objects calling inherited parent methods?
3. Does the child class call the parent’s constructor?
4. Does the child class override the parent’s toString?
5. Does the output produced have lots of comments explaining what is being output?
6. Does each class, and the output, have blank lines and appropriate indenting to make them more readable?
7. public class Plant
8. private String name;

9. private String lifespan;

class Plant{
    String name;
    String lifeSpan;

    //Default Constructor
    public Plant(){

    }

    //Parametrized Constructor
    public Plant(String name,String lifeSpan){
        this.name=name;
        this.lifeSpan=lifeSpan;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getLifeSpan() {
        return lifeSpan;
    }

    public void setLifeSpan(String lifeSpan) {
        this.lifeSpan = lifeSpan;
    }

    public String toString(){
        return "\n\tName:"+name+"\n\tLifeSpan:"+lifeSpan;
    }
}

class Tree extends Plant{
    float height;

    //Default Constructor
    public Tree(){

    }

    //Parametrized Constructor
    public Tree(float height,String name,String lifeSpan){
        super(name,lifeSpan); //Super Class Constructor
        this.height=height;
    }

    public float getHeight() {
        return height;
    }

    public void setHeight(float height) {
        this.height = height;
    }

    public String toString(){
        return "\n\t"+super.toString()+"\n\tHeight:"+height;
    }

}

class Flower extends Plant{
    String color;

    //Default Constructor
    public Flower(){

    }

    //Parametrized Constructor
    public Flower(String color,String name,String lifeSpan){
        super(name,lifeSpan); //Super Class Constructor
        this.color=color;
    }

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public String toString(){
        return "\n\t"+super.toString()+"\n\tColor:"+color;
    }
}


public class drjava{
    public static void main(String args[]){

        System.out.println("\n\nPlant DETAILS\n");
        Plant plant=new Plant();
        System.out.println("Testing Plant Setter and Getter and toString Methods");
        plant.setName("Rose");
        plant.setLifeSpan("2Years");
        System.out.println("Plant Name:"+plant.getName());
        System.out.println("Plant LifeSpan:"+plant.getLifeSpan());
        System.out.println("Plant toString:"+plant.toString());

        System.out.println("\n\nTREE DETAILS\n");
        Tree tree=new Tree();
        System.out.println("Testing Tree Setter and Getter and toString Methods");
        tree.setName(plant.getName());
        tree.setLifeSpan(plant.getLifeSpan());
        tree.setHeight(3.565f);
        System.out.println("Tree Name:"+tree.getName());
        System.out.println("Tree Height:"+tree.getHeight());
        System.out.println("Tree LifeSpan"+tree.getLifeSpan());
        System.out.println("Tree toString:"+tree.toString());

        System.out.println("\n\nFlower DETAILS\n");
        Flower flower=new Flower();
        System.out.println("Testing Flower Setter and Getter and toString Methods");
        flower.setName("Rose Flower");
        flower.setLifeSpan("2days");
        flower.setColor("Red");
        System.out.println("Flower Name:"+flower.getName());
        System.out.println("Flower Lifespan:"+flower.getLifeSpan());
        System.out.println("Flower Color:"+flower.getColor());
        System.out.println("Flower toString:\n"+flower.toString());
    }
}

Answer 1

Note: Could you plz go through this code and let me know if u need any changes in this.Thank You

// Vegetable.java

public class Vegetable {
   private String flavor;

   public Vegetable() {

   }

   public Vegetable(String flavor) {
       this.flavor = flavor;
   }

   public String getFlavor() {
       return flavor;
   }

   public void setFlavor(String flavor) {
       this.flavor = flavor;
   }

   public void displayDishes() {
       System.out.println("Capsicum Masala , Capsicum Fry");
   }

   public void displayGrownPlace() {
       System.out.println("Tamilnadu and Karnataka");
   }

   @Override
   public String toString() {
       return "Vegetable : Flavor=" + flavor;
   }

}
_________________________

// Plant.java

   public abstract class Plant {
       //Declaring instance variables
   String name;
   String lifeSpan;
  
   //Default Constructor
   public Plant(){
  
   }
  
   //Parametrized Constructor
   public Plant(String name,String lifeSpan){
   this.name=name;
   this.lifeSpan=lifeSpan;
   }
  
   public String getName() {
   return name;
   }
  
   public void setName(String name) {
   this.name = name;
   }
  
   public String getLifeSpan() {
   return lifeSpan;
   }
  
   public void setLifeSpan(String lifeSpan) {
   this.lifeSpan = lifeSpan;
   }
  
   public String toString(){
   return "\n\tName:"+name+"\n\tLifeSpan:"+lifeSpan;
   }
  
       public abstract String getBotanicalName();
       public abstract String getPlantUsedByHumans();
      
   }
  
__________________________

// Flower.java

class Flower extends Plant{
String color;

//Default Constructor
public Flower(){

}

//Parametrized Constructor
public Flower(String color,String name,String lifeSpan){
super(name,lifeSpan); //Super Class Constructor
this.color=color;
}

public String getColor() {
return color;
}

public void setColor(String color) {
this.color = color;
}

public String toString(){
return "\n\t"+super.toString()+"\n\tColor:"+color;
}

   @Override
   public String getBotanicalName() {
      
       return "Lilium auratum";
   }

   @Override
   public String getPlantUsedByHumans() {
      
       return "In Medicines";
   }
}

__________________________Thank You