Write a Java Program to do the following: Create an LinkedList object and store 5 different Integer objects. Using a ListIterator do the following: Compute sum of all even numbers only.

Need asap write a short paper describing the history and differences between six sigma, waterfall, agile, and scrum models. understanding these models can give you a good idea of how diverse and interesting it development projects can be. describe what the rationale for them is and describe their key features. describe the history behind their development. at least 400 words