Create a class named StudentRecords and add a static variable named records, which is a list shared among all objects of the class. Then add a method named add_record that takes a student's name as input and appends it to the shared records list.
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- Please create a driver class (java) that contains only a main method which should: Create a new CustomerList obiect Prompt the user to enter a file name Call the getCustomer List method with the file name that the user entered While (true) { Prompt user to enter command; if (command is "a") { Prompt user for customerNumber firstName lastName balance; Create a customerRecord and store it in the database; } else if (command is "f") { Prompt the user to enter a customer number and then displays the corresponding record on the screen; } else if (command is "g") { Prompt the user to enter a file name to save the latest update; Save the information in the database to the file specified by the user; Terminate program; } else { Display error message: } }Write a code using Console.WriteLine for the image.Scrabble Help: The file dictionary.txt contains all of the words in the Official Scrabble Player's Dictionary, Second Edition. Note: this list contains some offensive language. Write a class, WordLists, in Java that generates useful word lists for scrabble players using this list. Your class should contain the following methods: WordLists(String fileName): a constructor that takes the name of the dictionary file as the only parameter. lengthN(int n): returns an ArrayList of all length n words (Strings) in the dictionary file. endsWith(char lastLetter, int n): returns an ArrayList of words of length n ending with the letter lastLetter containsLetter(char included, int index, int n): returns an ArrayList of words of length n containing the letter included at position index. So for example the word "cannon" would be on the list returned by containsLetter('o',6,4) because it contains the letter 'o', at index 4, and is length 6. multiLetter(int m, char included): returns an ArrayList of…
- How do I add several objects to an ArrayList in JAVA using a loop?Q8. Write a declaration of a private field named department that can hold an ArrayList. The elements of the ArrayList are of type Student. Write an assignment to the department variable to create an appropriate ArrayList object. Q9. (A) If a collection stores 20 objects, what value would be returned from a call to its size method? (B) Write a method call using get to return the fifth object stored in a collection called department. Q10. Write a method call to add the object held in the variable student1 to a collection department files.Step1-Study the scenario below and create a Java Program for Builders Warehouse, The program must consist of a class called Materials to handle the details of the materials. Step 2-The program should read the materials details from the material.txt file then use a LinkedList to store the material details. Step 3-Then finally the products stored in the LinkedList must be displayed like the sample code below: Step 4-There must be clear code and a screenshot of the code running.
- It should be designed as a Desktop Application (with GUI) developed with Java programming language.Note that you are not designing a Web Application or a Mobile Application.Create a project named “FavoriteBooks” which keeps a list of the books that a user has read and liked.This list is stored in a text document (.txt) file and for each book it keeps the following data separated by acomma (,):Book id, Title, Category, First Author Name and Surname, Award Winner, Rating, Year, Number of Pages, andShort Description. Book id: The data type of “Book id” is integer and will be incremented automatically by 1 whenever anew book is added to the list. Title: The data type of “Title” is String. Category: The data type of “Category” is String. It shows the category of a Book such as Arts, Biography,History, Science Fiction, Cookbook, Literature, etc.. First Author Name and Surname: The data type of “Author Name and Surname” is String. Award Winner: The data type of “Award” is String. If the…The UnsortedTableMap class is located in the maps folder. In the attachment, you will find a partially implemented class called UnsortedMapOfLists, which extends UnsortedTableMap. The values associated with the keys in UnsortedMapOfLists are arrays. So you have an array with each key. Off course you can save an array in the value of UnsortedTableMap class without the class we are going to develop, but our class makes this easier, as it allows using a syntax like this: myMap["somekey", 1] to reach element at index 1 in the array associated with key "somekey". I already implemented methods __setitem__ and __getitem__. Your task is to: implement method __delitem__ . Deletion will be performed for an element in the array. If index is not given, delete the array associated with the key. implement a function (not a method in the class) to swap the arrays associated with two given keys. Add the required comment in method __getitem__. implement a main to verify that your code is working…Please may you do the attached in Java code , adding a method to an existing code .
- In python Write a method called add_racer which takes in a Boat object and adds it to the end of the racers list. The function does not return anything. Write a method called print_racers which loops through racers and prints the Boat objects. This function takes in no parameters (other than self) and returns nothing. Write a method called count that returns the number of racers. Write a method called race. The race function calls the move function for all of the racers in the BoatRace. Once all the racers have moved, call the print_racers method to display information about the progress of each boat. Then, check if any of the racer’s current_progress is greater than or equal to the race’s distance. If so, then return a list of all of the racers whose current_progress is greater than or equal to distance. If no racer has finished the race then repeat the calls to move and check until at least one racer has finished the race. Examples: Copy the following if __name__ ==…Which of the above choices (A, B, C or D) prints the name of each animal in the animalList object created from a previous question?// Assume that these accessor and mutator methods exist in the Animal class: // public void setAnimalName(String newName) { ... } // public String getAnimalName() { ... } // A for(int i = 0; i < animalList.length(); i++) { Animal tempAnimal = animalList[i]; System.out.println( tempAnimal.getAnimalName()); } // B for(int i = 0; i < animalList.length; i++) { Animal tempAnimal = animalList[i]; System.out.println( tempAnimal.getAnimalName()); } // C for(int i = 0; i < animalList.length; i++) { Animal tempAnimal = animalList[i]; System.out.println( tempAnimal.setAnimalName()); } // D for(int i = 0; i < animalList.length; i++) { Animal tempAnimal = animalList[i]; System.out.println(tempAnimal.animalName); }A Maze Room : In this lab, we will make a maze game. The maze is based on Linked Lists. Instead of having one possible direction (next), we will have 4 possible directions. Rooms: Use the below code as a basis to build your own room class. Implement this class in the file room.py A room will be the basic object for our maze game. A room can have 4 doors (pertaining to north, south, east, and west). Attached to each these directions we have either another room or None (we could also imagine that the None doors are just walls). We want the player to be able to tell what room they are in. Each room will have a unique description. When the player enters a room, the program will describe the room. This way the player will know if they went back to a room that have already been to. You MAY NOT change the method's arguments/names in ANY way. class Room():def __init__(self, descr):#Description of the room to print out#These should be unique so the player knows where they areself.descr =…