Write a Java program to print the content of linked list using the Iterator object.

Java's LinkedList provides a method listlterator(int index) returning a Listlterator for a list. Declare a variable of LinkedList of integer numbers and write a fragment of Java code to compute and print the sum of the numbers on the list. Do not write code to insert elements to the list and assume that the list already has elements on it. You must only use an iterator obtained from the list (you can not use the get(int index) method) .

Describe some data that might be best stored in a Java Collection LinkedList. Briefly explain why this is probably a good choice. Give an example of the LinkedList declaration and instantiation for your example. Show the code to store at least one value into your LinkedList.

Write a program for Stack (Array-based or linked list-based) in Python. Test the scenario below with the implementation and with the reasoning of the answer. Make comments with a short description of what is implemented. Include source codes and screen-captured outputs. Stack: A letter means doing a push operation and an asterisk means doing a pop operation in the below sequence. Give the sequence of letters that are returned by the pop operations when this sequence of operations is performed on an initially empty stack. A*BCE**F*GH***I*