group of researchers hired you to develop a system to manage the execution of their computing jobs (tasks) in a piece of equipment. This cquipment can only execute one job at a time. Thus, you need to create a Queue class to queue jobs. The queue can be associated with one of the following strategies for selecting jobs: First In First Out (FIFO). Lowest First (LF), and Last In First Out (LIFO). Use the Strategy design pattern for representing these strategies and their association to Queue. Draw a UML diagram
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A group of researchers hired you to develop a system to manage the execution of their computing jobs (tasks) in a piece of equipment. This cquipment can only execute one job at a time. Thus, you need to create a Queue class to queue jobs. The queue can be associated with one of the following strategies for selecting jobs: First In First Out (FIFO). Lowest First (LF), and Last In First Out (LIFO). Use the Strategy design pattern for representing these strategies and their association to Queue. Draw a UML diagram
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- IN JAVA This triple-ended queue exercise can be found at https://open.kattis.com/problems/teque. The requirements for this program are compatible with those of the Kattis problem, so a solution should produce correct results when submitted on Kattis. The Triple-Ended QUEue supports four operations: push_back x: inserts the element x at the end of the TEQUE push_front x: inserts the element x at the front of the TEQUE push_middle x: inserts the element x so that the insertion index for x is (k + 1)/2 for a 0-based indexed TEQUE. get i: prints out the ith index element (0-based) of the TEQUE. The TEQUE will be implemented as a linked list. The usual implementation requirements apply along with a screenshot of the results from Kattis. Sample input 10 push_back 1 push_front 2 push_back 3 push_front 4 push_middle 5 push_back 6 get 3 push_middle 7 push_middle 8 get 5 Sample Output 1 1 Subject: Java ProgrammingYou need to insert the numbers2,4,3,7, one at a time in that order into to an initially empty queue. Represent that process using the standard constructors EmptyQueue and push. Show, in the standard two-cell notation, the resulting queue. What is the result of the operation top on that queue? What is the result of the operation pop on the original queue you created? What is the result of the operation pop followed by pop followed by top on the original queue you created?Implement the Round Robin Scheduler as described in attached notes “Round Robin SchedulerExample.pdf” using queue (you can use either ArrayQueue or LinkedQueue), based on theprovided starter Python code “robin_scheduler.py”. In the starter file, three tasks have alreadybeen set in a tasks list according to the example in the attached document. You are only asked tocomplete the method “scheduling”. Once you finish your code based on the starter code and runit, the output should be same as bellow. You should test your code using more examples.
- Create a new Java class in a file named "ListPQ.java" that implements the Queue interface and uses the LinkedList provided by the JCF to implement a priority queue. Note that LinkedList does not automatically order values based on priority, so it will be up to you to make sure that values are removed in priority order. You should try to implement your priority queue as efficiently as possible - basic operations should run in constant or linear time. Your priority queue need only work with integers. Do not modify any of the provided code. //This is ArrayHeap (provided code) import java.util.Arrays; public class ArrayHeap implements Heap { private int[ ] array; private int size; public ArrayHeap() { array = new int[3]; size = 0; } @Override public void add(int value) { // add pt 1 if(size == array.length) { array = Arrays.copyOf(array, size*2); } array[size] = value; // sifting up int child = size; int parent = (child - 1) / 2; while(array[parent] > array[child]) { swap(parent,…you are to design a printer queue that is responsible for handling the printing requests coming from different users. You have to take into consideration that users have different levels of priorities. Each user has an identification number and a password, in addition to printing priorities. One good idea is to design the queue using an array or pointers while preserving the first-in first-out concept of the queue. For every printing request received, the program should check the priorities of that request and whether it can be moved forward in the queue to be served by the printer prior to serving the other requests. Using the programming language of your choice (preferably C++), write the printer queue that would handle the user request. The program must allow for requests coming from different users or from one user. Note: I need a working C++ code for this problem, and i need priorities.A. Suppose that q1 is a class CircularQueue object that is using circular queue concept and the maximum size of the array implementing q1 is 10. The current index value of front is 5 while the current index value of rear is 9. i. What are the index values of front and rear after adding TWO (2) elements into q1? Draw the circular queue diagram to show the addition process. ii. After implementing the process in Question 2A (i), what are the index values of front and rear after removing FIVE (5) elements from q1? Draw the circular queue diagram to show the removing process. iii. What are the current number of elements after implementing the process in Question 2A (i) and Question 2A (ii)? =======================
- Consider a situation of a boarding gate of a plane where passengers are allowed to board on the place based on their age. All passengers are on a line (queue) to board on the place, however, the oldest one is always allowed to board first no matter when he/she got in the line (queue). In this case, you cannot sort the passengers by their age, however, you know that oldest ones are always at the top of the line. This is an example of a priority queue where data will be accessed and processed based on their level of priority. Suppose you need to organize such type of data so that the data in highest priority can be accessed in a constant time, O(1). What type of data structure would you use in such cases? Justify your answer.This is a java question Trace through the state of the queue q in the following code fragment in the main method. You need to show the queue with its values for credit. Queue <Integer> q = new ArrayDeque<Integer>( );q.add(14);q.add(-47);q.offer(75);q.poll( );Integer v = q.peek( );q.add( v - 32);q.remove( );q.add(q.poll( ));System.out.println ("q has " + q);System.out.println ("v has " + v); Final Result for q: v:The implementation of a queue in an array, as given in this chapter, uses the variable count to determine whether the queue is empty or full. You can also use the variable count to return the number of elements in the queue. On the other hand, class linkedQueueType does not use such a variable to keep track of the number of elements in the queue. Redefine the class linkedQueueType by adding the variable count to keep track of the number of elements in the queue. Modify the definitions of the functions addQueue and deleteQueue as necessary. Add the function queueCount to return the number of elements in the queue. Also, write a program to test various operations of the class you defined.
- Your task is to develop a circular linked-list based simulation of the Josephus problem. Thesimulation will be text based. The user should be presented with a text-based menu asking him toenter the total number of people (n), starting point (i), direction (clockwise/anti-clockwise) andnumber to be skipped (k). Your program then must populate a circular linked list with n nodeswhere data of each node should be their position in the circle (starting from 1).Your program should then work iteratively printing the remaining persons after each iteration(round of killing). After the last iteration only the node with the winning initial position should beleft in the list.Programming homework1) Simulated waiting queue in an Indian post office: In an Indian post office that not only distributes mail but also performs some financial activities like a savings bank, a lone postal worker attends to a single lineup of clients. As soon as a consumer enters the line, they are given a token # (serial number). After receiving assistance, the consumer exits the queue while the postal worker receives the token back. The employee could inquire as to how many consumers are still unattended at any one time.i) Put the system into practise using a suitable queue data structure, simulating the arrival and departure of consumers at random when the service is finished.can you add based on code below to prints the time when the print job from each student started and their waiting time. It also need to calculate the time needed to complete all printing jobs and the average waiting time. all using dynamic queue. #include <bits/stdc++.h>using namespace std; struct QNode { int data; QNode* next; QNode(int d) { data = d; next = NULL; }}; struct Queue { QNode *front, *rear; Queue() { front = rear = NULL; } void enQueue(int x) { // Create a new LL node QNode* temp = new QNode(x); // If queue is empty, then // new node is front and rear both if (rear == NULL) { front = rear = temp; return; } // Add the new node at // the end of queue and change rear rear->next = temp; rear = temp; } // Function to remove // a key from given queue q void deQueue() { // If queue is empty, return…