Create a class Animal with a constructor that takes no parameters and has an instance variable: private int energy; When an animal is "born," it has one unit of energy. It has the methods: public void eat(int amountToEat) - which increases the amount of energy the animal has by amountToEat public void

Create a class Animal with a constructor that takes no parameters and has an instance variable:

private int energy;

When an animal is "born," it has one unit of energy. It has the methods:

• public void eat(int amountToEat) - which increases the amount of energy the animal has by amountToEat
• public void move(int amountToMove) - which decreases the energy the animal has by amountToMove.
• public int getEnergy() - which returns the amount of energy left

Notice there is no setEnergy method. Energy is only changed by eating or moving.

You should also create a subclass BetterAnimal which has a cap on the amount of energy an animal can have. 

• The constructor takes a parameter that specifies a maximum for energy. You will need to save this in another instance variable.

Override the eat and move methods

• In the eat method: If the amount the BetterAnimal eats would set its energy above the max, the energy level is only increased to the max. Also energy is only changed if the amount > 0
• In the move method: Energy changes only if amount > 0. The energy can never be less than 0. If an BetterAnimal has an energy of 2 and tries to move 5, its energy will be 0.

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