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- Javascript: A startup that builds a chat app wants to identify highly social users. All the chat data is in a large log file with three values on each line - the sender ID, receipient ID, and the number of messages. Given a threshold number, find the number of users that appear at least as many times as this threshold.For example:USERA USERB 14USERA USERC 94USERB USERB 3...Note: On the third line, a user sents a message to himself.Inputslogs = a list of lines where each line is a stringthreshold = a numberOutputReturn a list of sorted user IDs. If the same user appears in the same line, only count them once.Scanner sc = new Scanner(System.in);ArrayList <Student> students = new ArrayList<Student>();ArrayList <Student> courses = new ArrayList<Student>();// Method to read the file contents and stores it in// instance arraysvoid readStudents(){// Scanner class object declaredScanner readStuF = null;// try block beginstry{// Opens the file for readingreadStuF = new Scanner(new File("student.txt"));// Loops till end of the file to read recordswhile(readStuF.hasNextLine()){ String stu = readStuF.nextLine();String []eachStu = stu.split(" ");students.add(new Student(eachStu[0], eachStu[1],eachStu[2], Long.parseLong(eachStu[3]),Integer.parseInt(eachStu[4]), Integer.parseInt(eachStu[5]),Integer.parseInt(eachStu[6])));}// End of while loop }// End of try block// Catch block to handle file not found exceptioncatch(FileNotFoundException fe){System.out.println("\n ERROR: Unable to open the file for reading.");}// End of catch block // Close the filereadStuF.close();}// End of…writcapregram.to find the average oleven and the average of 20entered
- Objective: This activity has the purpose of helping students to design proper hashing strategies. (Objective 3). Students Instructions: After studying this module, write the answer to the following programming assignments in a text file and submit them as an attached Word doc or PDF through the provided link in Blackboard. The deadline for submitting this assignment is indicated on "Tools", which is located in "Calendar" in the "Blackboard" platform. You will have two (2) attempt to send your answers by Assignment link before the deadline and the last submission would be considered as your final solution. This exercise has Implement a dictionary by using hashing and separate chaining. Question:The People class holds an unsorted list of humans. Initially, this list is empty. Existing Human objects may be added to the list using an insert method. Upon inserting a Human object, it is added to the array at the next available position and the position value in incremented. If the position value is equal to the size value, do not insert the Human. Instead, throw an exception that your driver can catch to print an error that the People object is full. Create a People class with the following features: Each People object has a statically allocated array of Human objects. Size attribute representing the maximum size of the array. Position attribute representing the next free position in the array. Default constructor with no arguments. Search method that takes a string argument and returns a Human object. This method returns the first Human object with a name matching the string argument. In other words, pass the name of a Human as a string, search the list of humans for…1. Use a below-given starter code. Use StackInterface.(h), and ArrayStack.(h,cpp). You will write your own StackDriver.cpp application file. IT'S IN C++Also...If the class that you create is Star, remember that you will declare your stack as follows:ArrayStack<Star> myStarStack;and you will push, pop, and peek Star objects.2. Create your own class definition. I should have at least one attribute, a constructor, and set and get methods for each attribute in your class.NOTE: If your class is offensive your lab will be rejected and you will receive a score of zero. I'm sorry I have to say this but there is a history of this happening and it is not appropriate.3. Write a driver program that exercises the Stack class from the downloaded starter code. Create multiple instances of your own class and demonstrate the stack operations: push, pop, and peek. ( you write your own class that you will put on the stack and you will write a driver that pushes, peeks, and pops your class items…
- TaskDeclare and implement 5 classes: FloatArray, SortedArray,FrontArray, PositiveArray & NegativeArray.1- The FloatArray class stores a dynamic array of floats and itssize. It has:- A parameterized constructor that takes the array size.- An add method that adds a float at the end of the array.- Overloading for the insertion operator << to write the array to afile (ofstream)- Overloading for the extraction operator >> to read the arrayelements from the file (ifstream) and add them to the array.- A destructor to deallocate the array2- The SortedArray inherits from FloatArray. It has:- A parameterized constructor that takes the array size.- An add method that adds a float at the right place in the arraysuch that the array remains sorted with every add. Don’t add tothe array then sort but rather add in the right place.3- The FrontArray inherits from FloatArray. It has:- A parameterized constructor that takes the array size.- An add method that adds a float at the front of…Evaluate the following functions: 1. prune [[[3],[1,2,4]],[[1,3],[3,4]]] 2. fix prune [[[5],[6,8]],[[7],[7,8]]] 3. blocked [[[3,4],[],[3]],[[1],[1,2],[1]]] 4. expand [[[1,2],[3]],[[4),[1,2]]How does a map tell us when an element is not found? A The map returns a null reference. B The map throws an exception. C The map returns an empty data object. D The map returns a value of zero.
- Create a file named minesweeper.py Create a function that takes a grid of # and -, where each hash (#) represents a mine and each dash (-) represents a mine-free spot. Return a grid, where each dash is replaced by a digit, indicating the number of mines immediately adjacent to the spot i.e. (horizontally, vertically, and diagonally). Example of an input: [ ["-", "-", "-", "#", "#"], ["-", "#", "-", "-", "-"], ["-", "-", "#", "-", "-"], ["-", "#", "#", "-", "-"], ["-",","-","-"-"]] Example of the expected output: [ ["1", "1", "2", "#", "#"], ["1", "#", "3", "3", "2"], ["2", "4", "#", "2", "0"], ["1", "#", "#", "2", "0"], ["1", "2", "2", "1", "0"] ] Use deep copy to copy your input grid to make your output grid look the same.Create a data type to model the ring buffer. Write a class named RingBuffer that implements the following API:Problem4. Write a program that will Sort an elements to an ArrayList or LinkList. Filename: ArrListSort.java