QUESTION 9 A given file can only be opened once per program -- you cannot close it and open again until after your program terminates. True False QUESTION 10 You need to store a list of players on a team so that you can look them up by number. The numbers are small and unique to each player, and neither the players nor their numbers change often. Should you use an ArrayList or a LinkedList? Linked List O ArrayList It doesn't matter in this case.
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- In this assignment, you will compare the performance of ArrayList and LinkedList. More specifically, your program should measure the time to “get” and “insert” an element in an ArrayList and a LinkedList.You program should 1. Initializei. create an ArrayList of Integers and populate it with 100,000 random numbersii. create a LinkedList of Integers and populate it with 100,000 random numbers2. Measure and print the total time it takes to i. get 100,000 numbers at random positions from the ArrayList 3. Measure and print the total time it takes to i. get 100,000 numbers at random positions from the LinkedList 4. Measure and print the total time it takes to i. insert 100,000 numbers in the beginning of the ArrayList 5. Measure and print the total time it takes to i. insert 100,000 numbers in the beginning of the LinkedList 6. You must print the time in milliseconds (1 millisecond is 1/1000000 second).A sample run will be like this:Time for get in ArrayList(ms): 1Time for get in…4 O T O I D06 It is time for you to demonstrate your skills in a project of your own choice. You must DESIGN, ANALYSE AND CODE any method for the GENERIC MyLinkedList class that will manipulate the linked list. You can decide yourself what it should be following the specification below: 1. Purpose: The method must make logical sense - it should be of some purpose to somebody. You should describe in the text who will use the method for which purpose. 2. Clearly explain the problem. Then clearly explain how your method will solve it. 3. Test program: Test the method using a wranned class like Integer l Filters Add a caption. > Status (Contacts)Vectors are synchronized while ArrayLists are not. Group of answer choices True False
- Using Java programming language create a linked list named Cars with four elements: "SUV cars", "Pickup cars", "Sport cars", and "Sedan cars". Apply the following activities on the code you’ve created and provide screen shot of each result: Add a new element “Classic car” at the beginning of the linked list using iterator. Add a new element “Economic cars" after the element "Sedan Cars" using iterator. Print the LinkedList backward from the last element to the first element using hasPrevious()For this assignment I want you to create a linked list that can store generics. This work NEED JAVA FILE, it is one java program. You will need to complete the following files: insertEnd - This method is like insertFront except the item goes at the end of the list, not the beginning removeLast - This method is like the remove method, except it removes that last occurrence of the item removeAll - This method remove all items that match the provided item previous - The method returns the node in front of the item findAndMoveToFront - The method returns the first node containing the item, but as a side effect it also moves that node to the first of the list. This potentially makes future searches faster. This is called the move to front search heuristic.Problem4. Write a program that will Sort an elements to an ArrayList or LinkList. Filename: ArrListSort.java
- You are going to implement a program that creates an unsorted list by using a linked list implemented by yourself. NOT allowed to use LinkedList class or any other classes that offers list functions. It is REQUIRED to use an ItemType class and a NodeType struct to solve this homework. The “data.txt” file has three lines of data 100, 110, 120, 130, 140, 150, 160 100, 130, 160 1@0, 2@3, 3@END You need to 1. create an empty unsorted list 2. add the numbers from the first line to list using putItem() function. Then print all the current keys to command line in one line using printAll(). 3. delete the numbers given by the second line in the list by using deleteItem() function. Then print all the current keys to command line in one line using printAll().. 4. putItem () the numbers in the third line of the data file to the corresponding location in the list. For example, 1@0 means adding number 1 at position 0 of the list. Then print all the current keys to command line in one…please follow instructions correctly. You are required to complete the LinkedList class. This class is used as a linked list that has many methods to perform operations on the linked list. To create a linked list, create an object of this class and use the addFirst or addLast or add(must be completed) to add nodes to this linked list. Your job is to complete the empty methods. For every method you have to complete, you are provided with a header, Do not modify those headers(method name, return type or parameters). You have to complete the body of the method. package chapter02; public class LinkedList { protected LLNode list; public LinkedList() { list = null; } public void addFirst(T info) { LLNode node = new LLNode(info); node.setLink(list); list = node; } public void addLast(T info) { LLNode curr = list; LLNode newNode = new LLNode(info); if(curr == null) { list = newNode; } else…You are writing a program that repeatedly does a linear search on a list of items. In order to speed the program up, every time you search for an item and find it in the list, you move that item to the beginning of the list so that the linear search will find it faster the next time you look for it. Which type of list would be better to use in this situation? Question 5 options: 1 ArrayList 2 LinkedList 3 Both types of list will perform about the same for this use case
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