Modify the BankAccount class (given in textbook Starting out with java 6 th edition, chapter 7) as follows: 1) Add an appropriate toString method; 2) Add an appropriate equals method; 3) Add a copy constructor; 4) Add an integer objectID field to each BankAccount object---this field should contain a sequential unique numeric ID that is assigned to each object when it is created (the very first object should have an ID of 1001; 5) Add a static method named objectsInMemory() that returns the number of BankAccount objects that are currently in memory; 6) Use a finalize() method to keep track of objects that are reclaimed by the garbage collector so that such reclaimed objects are not counted as being objectsInMemory. Write a small demo class that demonstrates your modified BankAccount class.