1. Implement the following method that returns the maximum element in an array. public static > E max(E[] list) 2. Write the following method. The method call removeDuplicates(list) returns a copy of list that do not contain duplicate elements. For example, if list = [1,2,1,2,3,4,4), then the returned list is [1,2,3,4]. public static ArrayList removeDuplicates (ArrayList list) 3. The following class Genericstack is implemented using composition. Define a new generic stack class that extends ArrayList. public class GenericStack { private java.ut 11. ArrayList list - new java.ut11. ArrayListoo: public int getSize() { return list.size(): } public E peek() { return list.get (getSize() - 1); } public void push(E 0) { list.add(o); } public Epop { E o list.get(getSize() - 1); list.remove(getSize() - 1); return o; > public boolean isEmpty() { return list.isEmpty(); 3 @Override 1 public String toString() { return "stack list.toString()