These questions are java

1. Identify the two things you must define in order to construct a recursive solution to a problem.

2. A Euclidian algorithm finds the gcd of two positive integers a and b. If the two parameters of the method are dividend and divisor, identify when you will have reached the base case.

3. Would you recommend using recursion or iteration in setting up a program for moving pallets of cargo off a ship? Justify your answer.

4. For a linked list of objects, a delete method that returns an object (the object deleted, if any) throws an exception. Why?

a. Evaluate what is wrong with the following code, and recommend an alternative code:

while ( current.getData( ) != value && current != null )

b. Analyze why a mutator method should not be included for the number of items in a list.