2) Create a character class hierarchy. You should have at least 1 abstract class and at least 3 types of characters (4 classes total). Each character should implement the following: public int attack() returns the strength of an attack public void hit(int points) reduces the character's health based on the strength of an attack public boolean is Alive() returns a Boolean based on whether or not the character's health is greater than 0. The name, strength, and health of each character. 3) Write a toString() method for your character classes that displays the name, class, strength, & health of the character 4) Create a driver class that simulates a battle between two characters. Your logic for battle does not need to be complex