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Inheritance_Polymorphism_Project1
package com.skiabox.java_apps2;
/**
* Created by administrator on 09/10/2016.
*/
public abstract class Animal {
private String picture;
private Food food;
private int hunger;
private int[][] boundaries;
private int locationX;
private int locationY;
//getters and setters
public String getPicture() {
return picture;
}
public void setPicture(String picture) {
this.picture = picture;
}
public Food getFood() {
return food;
}
public void setFood(Food food) {
this.food = food;
}
public int getHunger() {
return hunger;
}
public void setHunger(int hunger) {
this.hunger = hunger;
}
public int[][] getBoundaries() {
return boundaries;
}
public void setBoundaries(int[][] boundaries) {
this.boundaries = boundaries;
}
public int getLocationX() {
return locationX;
}
public void setLocationX(int locationX) {
this.locationX = locationX;
}
public int getLocationY() {
return locationY;
}
public void setLocationY(int locationY) {
this.locationY = locationY;
}
//common methods
public void sleep()
{
System.out.println("The animal sleeps");
}
//methods that must be implemented below the hierarchy
public void roam()
{
System.out.println("The animal is roaming");
}
public abstract void makeNoise();
public abstract void eat();
}
package com.skiabox.java_apps2;
/**
* Created by administrator on 10/10/2016.
*/
public class App2 {
public static void main(String[] args) {
//Separator
System.out.println("Inheritance in action");
System.out.println("------------------------------------------------------");
Animal w = new Wolf();
w.makeNoise(); //method is called from Wolf class
w.roam(); //method is called from Canine class
w.eat(); //method is called from Wolf class
w.sleep(); //method is called from Animal class
System.out.println();
//Separator
System.out.println("Polymorphism in action");
System.out.println("------------------------------------------------------");
//Now let's create an array of animals to see polymorphism in action
Animal[] animals = new Animal[5];
animals[0] = new Dog();
animals[1] = new Cat();
animals[2] = new Wolf(); //remember that Wolf has its own roam method
animals[3] = new Hippo();
animals[4] = new Lion();
for (int i = 0; i < animals.length; i++)
{
animals[i].eat();
animals[i].roam();
}
System.out.println();
//Separator
System.out.println("Polymorphic arguments");
System.out.println("------------------------------------------------------");
//We can have polymorphic arguments
Vet newVet = new Vet();
newVet.giveShot(w);
}
}
package com.skiabox.java_apps2;
/**
* Created by administrator on 10/10/2016.
*/
public abstract class Canine extends Animal{
public void roam()
{
System.out.println("The Canines move in packs");
}
}
package com.skiabox.java_apps2;
/**
* Created by administrator on 10/10/2016.
*/
public class Cat extends Feline{
@Override
public void makeNoise() {
System.out.println("The cat meows");
}
@Override
public void eat() {
System.out.println("The cat eats " + Food.GRASS);
}
}
package com.skiabox.java_apps2;
/**
* Created by administrator on 10/10/2016.
*/
public class Dog extends Canine{
@Override
public void makeNoise() {
System.out.println("The dog barks");
}
@Override
public void eat() {
System.out.println("The dog is eating " + Food.GRASS);
}
}
package com.skiabox.java_apps2;
/**
* Created by administrator on 09/10/2016.
*/
public abstract class Feline extends Animal{
//common Feline methods
public void roam() {
System.out.println("The Felines avoid each other");
}
}
package com.skiabox.java_apps2;
/**
* Created by administrator on 09/10/2016.
*/
public enum Food {
MEAT,
GRASS
}
package com.skiabox.java_apps2;
/**
* Created by administrator on 10/10/2016.
*/
public class Hippo extends Animal{
@Override
public void makeNoise() {
System.out.println("The hippo snarls");
}
@Override
public void eat() {
System.out.println("The hippo is eating " + Food.GRASS);
}
}
package com.skiabox.java_apps2;
/**
* Created by administrator on 09/10/2016.
*/
public class Lion extends Feline{
//Lion methods
@Override
public void makeNoise() {
System.out.println("The lion is growling");
}
@Override
public void eat() {
System.out.println("The lion is eating " + Food.MEAT);
}
}
package com.skiabox.java_apps2;
/**
* Created by administrator on 10/10/2016.
*/
public class Tiger extends Feline{
@Override
public void makeNoise() {
System.out.println("The tiger is growling");
}
@Override
public void eat() {
System.out.println("The tiger is eating" + Food.MEAT);
}
}
package com.skiabox.java_apps2;
/**
* Created by administrator on 10/10/2016.
*/
public class Vet {
public void giveShot(Animal a)
{
System.out.println("The vet is giving a shot to " + a.getClass().getSimpleName());
//The animal reacts to the shot
a.makeNoise();
}
}
package com.skiabox.java_apps2;
/**
* Created by administrator on 10/10/2016.
*/
public class Wolf extends Canine{
@Override
public void makeNoise() {
System.out.println("The wolf howls");
}
@Override
public void eat() {
System.out.println("The wolf is eating " + Food.MEAT);
}
//We can override a method from a superclass and at the same time call it like this
public void roam()
{
super.roam();
System.out.println(", and now that it is a wolf it is very dangerous for its prey");
}
}
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