1. How many methods are required for a class that implements Cloneable? 2. Write a class, ArrayIterator, which implements the Iterator interface. The constructor has one argument, which is an array of...

1. How many methods are required for a class that implements Cloneable?

2. Write a class, ArrayIterator, which implements the Iterator interface. The constructor has one argument, which is an array of E objects. The ArrayIterator returns the components of the array one at a time through its next method.