Tester

public class Tester {

   public static void main(String[] args) { 

      Animal creature = new Animal(10, 5);
      Animal dog = new Dog(10, 4);
      Animal boy1 = new Man(10, 2, 50);
      Animal boy2 = new Man(10, 2, 50);
		
      int result = 0;
		
      if (creature.equals(dog))
         result = 5;
      else
         result = 5*2;
		
      if(dog.equals(boy1))
         result = result + 5*10;
      else
         result = result + 5*20;
		
      if (boy1.equals(boy2))
         result = result + 5*100;
      else
         result = result + 5*200;           
                   
   }
}

What is the final value of result?

Man.java

public class Man extends Animal{

	private double weight;	
	public static final int NUM_OF_LEGS = 2;
	public static final int VENERABLE_AGE = 50;
	
	public Man(int age, int legs, double weight) {
		super(age, legs);
		this.weight = weight;
	}
	
	public double getWeight() {
		return weight;
	}
	
	public double computeSpeed() {
		return super.computeSpeed() * 10 / weight;
	}	
	
	public String speak () {
		if (getAge() < VENERABLE_AGE)
			return "How are you doing?";
		else 
			return "How are you doing, honey?";
	}
	
	public String toString() {
		return super.toString() + "[weight=" + weight + "]"; 
	}
	
	public boolean equals(Object anObject) {		
		Man man = (Man) anObject;
		return super.equals(anObject) && this.weight == man.weight;
	}
	
}

Animal.java

public class Animal {
	
	public static final int MINIMUM_SPEED = 10;
	
	private int age; 
	private int numOfLegs;
	
	public Animal(int age, int legs) {
		this.age = age; 
		numOfLegs = legs;
	}	
	
	public int getAge() {
		return age;
	}
	
	public int getNumOfLegs() {
		return numOfLegs;
	}
	
	public double computeSpeed() {
		return MINIMUM_SPEED * numOfLegs;
	}
	
	public String speak(){
		return "gibberish";
	}
	
	public String toString() {
		return getClass().getName() + "[age=" + age + "][legs=" + numOfLegs + "]";
	}
	
	public boolean equals(Object anObject) {
		Animal animal = (Animal) anObject;
		return this.age == animal.age && this.numOfLegs == animal.numOfLegs;
	}
	
}

Dog.java

public class Dog extends Animal {

	public static final int NUM_OF_LEGS = 4;
	
	public static final int VENERABLE_AGE = 10;
	
	public Dog(int age, int legs) {
		super(age, legs);
	}
	
	public double computeSpeed() {
		if (getAge() < VENERABLE_AGE)
			return super.computeSpeed();
		else 
			return super.computeSpeed() / 2.0;
	}	
	
	public String speak () {
		return "bow-wow";
	}

}