Language/Type: Related Links: Java Set collections List Write a method named numUnique Values that accepts a List of integers as a parameter and returns the number of unique integer values in the list. For example, if a list named 1 contains the values [3, 7, 3, -1, 2, 3, 7, 2, 15, 15], the call of numUnique Values (1) should return 5. If passed the empty list, you should return Ø. Use a Set as auxiliary storage to help you solve this problem. Do not modify the list passed in. 5 6 7 8 9 10 Method: Write a Java method as described, not a complete program or class. 123

Question 2: Linked List Implementation You are going to create and implement a new Linked List class. The Java Class name is "StringLinkedList". The Linked List class only stores 'string' data type. You should not change the name of your Java Class. Your program has to implement the following methods for the StringLinked List Class: 1. push(String e) - adds a string to the beginning of the list (discussed in class) 2. printList() prints the linked list starting from the head (discussed in class) 3. deleteAfter(String e) - deletes the string present after the given string input 'e'. 4. updateToLower() - changes the stored string values in the list to lowercase. 5. concatStr(int p1, int p2) - Retrieves the two strings at given node positions p1 and p2. The retrieved strings are joined as a single string. This new string is then pushed to the list using push() method.

Project Description: In this project you implement an ArrayStack ADT and use the stack for implementing the following methods: a) Reverse an array of Words: Accept an array of words as input parameter and return an array of words in reverse order. Use the method signature: public static String[] reverse Words (String[] wordList) Example Input: Bird Cat Dog Elephant Output: Elephant Dog Cat Bird

If you perform the following sequence of operations on a list that contains items [2, 4, 6, 8], what will be the output of the last dequeue operation? enqueue(2) enqueue(4) dequeue() enqueue(6) dequeue()