I have a large number of string objects whose order is not really important, but I'd like to remove all duplicates. What container should I use to store them? Pick ONE option A dynamic array A linked list A set A map A Queue
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I have a large number of string objects whose order is not really important, but I'd like to remove all duplicates. What container should I use to store them? Pick ONE option A dynamic array A linked list A set A map A Queue
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- Computer Science create a method +addToList(o:E):void that adds the object (o) to the ArrayList referenced by the instance variable list. create a method +removeFromBackOfList():E that removes the object at the back of the ArrayList and returns it.Computer Science Write a program in the Java language that includes: 1. A class for books, taking into account the encapsulation and getter, setter. 2. Entering books by the user using Scanner 3. LinkedList class for: (Adding a new book - Inserting a book- Searching for a book using the ISBN Number - Viewing all books,delete book). 4. Serial number increases automatically with each book that is entered. 5. Printing the names of books is as follows: Serial - ISBN - Name - PubYear - Price - Notes. 6-Design a main menu that includes: • Add Book • Insert Book • Delete Book • Search . Display . ExitIt is a class that is part of the java.util package which can store a list of values and reference them with an index. (a) None of the Choices (b) Variable List (c) Array List (d) Object List Please provide an explanation. Thank you!
- In Java, Explain when it might be preferable to use a map instead of a set.Implement the following method where: 1. String s is a given string 2. myArray is an array list that contains strings 3. The method findExactString will take the string s and the arraylist myArray and return an arraylist that contains the indices of all strings in myArray that matches the string s. If the reference to the string is null and the reference to the string inside the array is also null, string s is considered to be a equal to the string in arraylist. public static ArrayList findExactString(String s, Arraylist myArray) { return null;OCaml Code: The goal of this project is to understand and build an interpreter for a small, OCaml-like, stackbased bytecode language. Make sure that the code compiles correctly and provide the code with the screenshot of the output. The code must have a function that takes a pair of strings (tuple) and returns a unit. You must avoid this error that is attached as an image. Make sure to have the following methods below: -Push integers, strings, and names on the stack -Push booleans -Pushing an error literal or unit literal will push :error: or :unit:onto the stack, respectively -Command pop removes the top value from the stack -The command add refers to integer addition. Since this is a binary operator, it consumes the toptwo values in the stack, calculates the sum and pushes the result back to the stack - Command sub refers to integer subtraction -Command mul refers to integer multiplication -Command div refers to integer division -Command rem refers to the remainder of integer…
- StringSorter.java is below: import java.io.*; // for Reader (and subclasses), Writer (and subclasses) and IOExceptionimport java.util.*; // for List, ArrayList, Iterator public class StringSorter { ArrayList lines; // given that we don't really know how to deal with a read/write error (IOException) // inside the functions, we'll let it pass through public void readFromStream(Reader r) throws IOException { BufferedReader br=new BufferedReader(r); lines=new ArrayList(); while(true) { String input=br.readLine(); if(input==null) break; lines.add(input); } } public void writeToStream(Writer w) throws IOException { PrintWriter pw=new PrintWriter(w); Iterator i=lines.iterator(); while(i.hasNext()) { pw.println((String)(i.next())); } } // returns the index of the largest element in the list static int findIdxBiggest(List l, int from, int to) { String…java Write a method that returns the frequency of each characters of a given String parameters If the given String is null ,then return null, if is empty then return an empty Map. Use Map data structureGiven a singly linked list, reverse the list. This means you have to reverse every node. For example if there are 4 nodes, the node at position 0 will move to position 3, the node at 1 will move to position 2 and so on. You do not have to write the Node class just write what you have been asked to. You are NOT allowed to create a new list. In python language
- There are two different methods you to add a range to an ArrayList.These methods are AddRange and InsertRange.implement a c# program to demonstrates how these two methods are used:What are wrapper classes and why are they useful for ArrayLists? Include examples of autoboxing and unboxing.Write a java program called ShoppingList.java, which prompts the user to enter a set of grocery items, and stores them in a list using the Java ArrayList Collection class. It then displays the list and asks the user to type in each item when they put it in their shopping cart and remove it from the list. It should work as follows: Welcome to My Shopping List. Please enter an item: Milk Enter another Item Y/N: Y Please enter an item: Bread Enter another Item Y/N: Y Please enter an item: Eggs Enter another Item Y/N: N Here is your Shopping List: Milk Bread Eggs Enter an item to remove from the list: Eggs Eggs has been removed Here is your Shopping List: Milk Bread Enter an item to remove from the list: Milk Milk has been removed Here is your Shopping List: Bread
