(Revise the MyStack class) Rewrite the MyStack class in Listing 11.10 to perform a deep copy of the list field.

LISTING 11.10 MyStack.java 1 import java.util.ArrayList; 3 public class MyStack 4 private ArrayList list new ArrayList O; array list 6 public boolean isEmptyO stack empty? return 1ist.isEmpty 10 public int getSizeO get stack size return 1ist.size); 12 13 14 public Object peek O 15 16 peek stack return list.get(getizeO 1); 440 Chapter Inheritance and Polymorphism 17 18 public Object popO 19 20 21 Object o-list.get (getSize) - 1); list.remove(getSizeO) -1); return o 23 24 public void push(Object o) 25 26 27 28 0verride 29 public String toStringO 30 31 32 push list.add(o); return "stack: "list.toString)