Question

Write in java and the class need to use give in the end copy it is fine.

Problem

1. Use the Plant, Tree, Flower and Vegetable classes you have already created. Add an equals method to Plant, Tree and Flower only (see #2 below and the code at the end).
2. The equals method in Plant will check the name. In Tree it will test name (use the parent equals), and the height. In Flower it will check name and color. In Vegetable it will check name by calling the method it inherits from Plant.
3. Create an array of Plants containing at least 2 plants of each type (trees, flowers, vegetables). Using polymorphism display the details of each plant in the array.
4. Use a cast to access two plants in the array to do sets and gets of at least 2 of (height, color, and taste). Show that the code works by producing suitable outputs.
5. Finally have the Tree class implement Comparable, and code the compareTo(Object) method to test the height. Show that the compareTo method can generate each of the 3 possible outcomes. You’ll need code similar to the equals code below since the parameter is of type Object

Assignment Submission:

Submit a print-out of each class file, the driver source code and a sample of the output.

public abstract class Plant {

private String name;

private String lifespan;

public Plant(){
name = "no name";
lifespan = "do not know";
}
public Plant(String newName, String newlife)
{
name = newName;
lifespan = newlife;
}
  
public String getName()
{
return name;
}
  
public String getlife()
{
return lifespan;
}
  
public void setName(String newName)
{
name = newName;
}
  
public void setLifeSpan(String newlife)
{
lifespan = newlife;
}
  
public String toString()
{
return "Name:"+name+"\nLifeSpan:"+lifespan;
}
  
public abstract String getBotnicalName();

public abstract String plantuse();
}

public class Tree extends Plant{
int height;
private String botnicalName;
private String plantuse;

public Tree(){
super();
height = 0;

}

public Tree(int newheight,String name,String lifeSpan){
super(name,lifeSpan);
height=newheight;
}

public int getHeight() {
return height;
}

public void setHeight(int newheight) {
height = newheight;
}
  
public String getBotnicalName() {
return botnicalName;
}

public void setBotnicalName(String newbotnicalName) {
botnicalName = newbotnicalName;
}

public String plantuse() {
return plantuse;
}

public void setplantuse(String newplantuse) {
plantuse = newplantuse;
}

public String toString(){
return "\n"+super.toString()+"\nHeight:"+height + "\nplantuse:" + plantuse + "\nlatinname:" + botnicalName;
}

}

public class Flower extends Plant{
String color;
private String botnicalName;
private String plantuse;


public Flower(){
super();
color = "do not know";

}


public Flower(String newcolor,String name,String lifeSpan){
super(name,lifeSpan);
color=newcolor;
}
  

public String getColor() {
return color;
}
  

public void setColor(String newcolor) {
color = newcolor;
}
public String getBotnicalName() {
return botnicalName;
}
  

public void setBotnicalName(String newbotnicalName) {
botnicalName = newbotnicalName;
}

public String plantuse() {
return plantuse;
}

public void setplantuse(String newplantuse) {
plantuse = newplantuse;
}

public String toString(){
return "\n"+super.toString()+"\nColor:"+color+ "\nplantuse:" + plantuse + "\nlatinname:" + botnicalName;
}

}

public class Vegetable extends Plant {

private String flavor;
private String origin;
private String dishes;
private String botnicalName;
private String plantuse;

public Vegetable(){
super();
flavor = " null";
origin = "null";
dishes= "null";

}

public Vegetable(String newName, String newlife, String newflavor) {
super(newName, newlife);
flavor = newflavor;
}

public String getFlavor() {
return flavor;
}

public void setFlavor(String newflavor) {
flavor = newflavor;
}

public String getOrigin() {

return origin;
}

public void setDishes(String newdishes) {
dishes = newdishes;
}

public String getDishes() {
return dishes;
}

public void setOrigin(String neworigin) {
origin = neworigin;
}

public String getBotnicalName() {
return botnicalName;
}

public void setBotnicalName(String newbotnicalName) {
botnicalName = newbotnicalName;
}

public String plantuse() {
return plantuse;
}

public void setplantuse(String newplantuse) {
plantuse = newplantuse;
}

public String toString() {
return super.toString() + "\nBotnicalName: " + botnicalName + "\nOrigin: " + origin + "\nDishes: " + dishes
+ "\nUses: " + plantuse;
}

}

Answer 1

public abstract class Plant {

private String name;

private String lifespan;

public Plant(){
name = "no name";
lifespan = "do not know";
}
public Plant(String newName, String newlife)
{
name = newName;
lifespan = newlife;
}
  
public String getName()
{
return name;
}
  
public String getlife()
{
return lifespan;
}
  
public void setName(String newName)
{
name = newName;
}
  
public void setLifeSpan(String newlife)
{
lifespan = newlife;
}
  
public String toString()
{
return "Name:"+name+"\nLifeSpan:"+lifespan;
}
  
public abstract String getBotnicalName();

public abstract String plantuse();

public boolean equals(Object otherPlant) {
   if(! (otherPlant instanceof Plant))
       return false;
   return (name.equals(otherPlant.getName());
}
}
public class Tree extends Plant implements Comparable<Object>{
int height;
private String botnicalName;
private String plantuse;

public Tree(){
super();
height = 0;

}

public Tree(int newheight,String name,String lifeSpan){
super(name,lifeSpan);
height=newheight;
}

public int getHeight() {
return height;
}

public void setHeight(int newheight) {
height = newheight;
}
  
public String getBotnicalName() {
return botnicalName;
}

public void setBotnicalName(String newbotnicalName) {
botnicalName = newbotnicalName;
}

public String plantuse() {
return plantuse;
}

public void setplantuse(String newplantuse) {
plantuse = newplantuse;
}

public String toString(){
return "\n"+super.toString()+"\nHeight:"+height + "\nplantuse:" + plantuse + "\nlatinname:" + botnicalName;
}

public boolean equals(Object otherTree) {
   if( ! (otherTree instanceof Tree))
       return false;
   return ((super.equals(otherTree)) && (height == otherTree.getHeight()));
}

/* implementing compareTo function from Comparable interface */
public int compareTo(Object otherTree) throws NoSuchMethodException{
   if(! (otherTree instanceof Tree))
       throw new NoSuchMethodException();
   /* If heights match then return 0
   if this.height > otherTree.height, return positive value
   if this.height < otherTree.height, return negative value
   */
   return (height - otherTree.getHeight());
}

public class Flower extends Plant{
String color;
private String botnicalName;
private String plantuse;

public Flower(){
super();
color = "do not know";

}

public Flower(String newcolor,String name,String lifeSpan){
super(name,lifeSpan);
color=newcolor;
}
  

public String getColor() {
return color;
}
  

public void setColor(String newcolor) {
color = newcolor;
}
public String getBotnicalName() {
return botnicalName;
}
  

public void setBotnicalName(String newbotnicalName) {
botnicalName = newbotnicalName;
}

public String plantuse() {
return plantuse;
}

public void setplantuse(String newplantuse) {
plantuse = newplantuse;
}

public String toString(){
return "\n"+super.toString()+"\nColor:"+color+ "\nplantuse:" + plantuse + "\nlatinname:" + botnicalName;
}

public boolean equals(Object otherFlower) {
   if(! (otherFlower instanceof Flower))
       return false;
   return ((super.equals(otherFlower) && color.equals(otherFlower.getColor())));
}
}

public class Vegetable extends Plant {

private String flavor;
private String origin;
private String dishes;
private String botnicalName;
private String plantuse;

public Vegetable(){
super();
flavor = " null";
origin = "null";
dishes= "null";

}

public Vegetable(String newName, String newlife, String newflavor) {
super(newName, newlife);
flavor = newflavor;
}

public String getFlavor() {
return flavor;
}

public void setFlavor(String newflavor) {
flavor = newflavor;
}

public String getOrigin() {

return origin;
}

public void setDishes(String newdishes) {
dishes = newdishes;
}

public String getDishes() {
return dishes;
}

public void setOrigin(String neworigin) {
origin = neworigin;
}

public String getBotnicalName() {
return botnicalName;
}

public void setBotnicalName(String newbotnicalName) {
botnicalName = newbotnicalName;
}

public String plantuse() {
return plantuse;
}

public void setplantuse(String newplantuse) {
plantuse = newplantuse;
}

public String toString() {
return super.toString() + "\nBotnicalName: " + botnicalName + "\nOrigin: " + origin + "\nDishes: " + dishes
+ "\nUses: " + plantuse;
}
}

public class MainClass {
   public static void main(String[] args) {
       Plant[] myGarden = new Plant[6]; /* myGarden has 6 plants */
      
       myGarden[0] = new Flower("Red","Rose", 5);
       myGarden[1] = new Flower("White", "lily", 2);
       myGarden[2] = new Tree(20, "Oak", 55);
       myGarden[3] = new Tree(30, "Fir", 35);
       myGarden[4] = new Vegetable("Onion", 1, "tangy");
       myGarden[5] = new Vegetable("Eggplant", 3, "sour");

       /* Print details of all plants in myGarden */
       for(Plant myPlant : myGarden) {
           System.out.println(myPlant.toString());
       }
      
       /* Typecasting */
       Flower myFavFlower = (Flower)myGarden[0];   /* myFavFlower is the rose */
       Tree myFavTree = (Tree)myGarden[2];           /* myFavTree is the Oak Tree */
      
       /* calling the set methods for typecasted objects */
       myFavFlower.setColor("Pink");
       myFavTree.setHeight(25);
      
       /* calling the get methods for typecasted methods */
       System.out.println("My Rose is now " + myFavFlower.getColor() + " in color");
       System.out.println("My Oak tree is now " + myFavTree.getHeight() + " feet tall!");
      
       Tree lemonTree = new Tree(10, "Lemon", 5); /* Assuming my neighbor has a Lemon tree in their garden */      
       int difference = lemonTree.compareTo(myGarden[3]); /* comparing a lemon tree with my 100 foot tall Fir tree */
       if(difference > 0) {
           System.out.println("The lemon tree is Taller than my Fir tree!");
       }
       else if(difference < 0) {
           System.out.println("The lemon tree is Shorter than my Fir tree!");
       }
       else {
           System.out.println("The lemon tree is as tall as my Fir tree");
       }
       /* End of program */
   }
}