This is the first example of Java Inheritance shown on our recent Java course - the second example is here



public class Anitest {

public static void main(String [] args) {

Farm ermintrude = new Farm("Cow",100,20);
Farm cocky = new Farm("Cockerel",4,2,2);
Pet belle = new Pet("Cat",5,300);

int ew = ermintrude.getweight();
int ev = ermintrude.getvalue();
String et = ermintrude.getbreed();
int el = ermintrude.getlegs();
System.out.println(et + " which weighs " + ew +
" worth " + ev + " legs: "+el);

ew = cocky.getweight();
ev = cocky.getvalue();
et = cocky.getbreed();
el = cocky.getlegs();
System.out.println(et + " which weighs " + ew +
" worth " + ev + " legs: "+el);

ew = belle.getweight();
ev = belle.getvalue();
et = belle.getbreed();
el = belle.getlegs();
System.out.println(et + " which weighs " + ew +
" worth " + ev + " legs: "+el);
}}



public class Farm extends Animal {
int vpk;

public Farm (String breed, int weight, int vpk) {
super(breed, weight);
this.vpk = vpk;
}

public Farm (String breed, int weight, int vpk, int legs) {
super(breed, weight, legs);
this.vpk = vpk;
}

public int getvalue() {
return vpk * weight;
}
}



public class Pet extends Animal {
int v;

public Pet (String breed, int weight, int v) {
super(breed, weight);
this.v = v;
}

public int getvalue() {
return v;
}
}



public class Animal {
String breed;
int weight;
int legs;

public Animal(String breed, int weight) {
this.breed = breed;
this.weight = weight;
this.legs = 4;
}

public Animal(String breed, int weight, int legs) {
this.breed = breed;
this.weight = weight;
this.legs = legs;
}

public String getbreed() {
return breed;
}

public int getweight() {
return weight;
}

public int getlegs() {
return legs;
}
}

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