array of size MAX_SIZE is used to implement a queue. head, tail, and size are tracked. Suppose front is 0 and rear is MAX_SIZE -1. How many elements are present in the queue? a. 0 b. MAX_SIZE-1 c. MAX_SIZE d. 1
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- in java A queue q stores int values. Show what q will look like after each of the following instructions is executed. Show elements from front to rear of the queue. E.g., If you show it as (a,b,c) a is in the font, c in the rear of the queue. q.enqueue(13); q.enqueue(6); q.enqueue(12); q.dequeue(); q.dequeue(); q.enqueue(15); q.enqueue(46); q.dequeue(); q.enqueue(13); q.enqueue(30);In this lab the task is to write a program that maintains a personal phone book. The program allows to: ▪ Add and Delete entries from the phone book, ▪ Search the phone book for a specific entry by last name or by phone number, and ▪ Print out the entire entries in the phone book. The data in the phone book is maintained by storing in memory with the use of a singly linked list, with one list node per entry. Each node contains members for storing a person’s family name, first name, address, and the phone number. Use strings to store this information. The linked list must be kept in increasing alphabetical order, sorted by family name. There are no duplicate entries with the same family name allowed in the phone book. This program should be menu driven, with the user being offered a choice of the following commands described below: ▪ Insert a new entry into the phone book. The program should prompt the user for a new family name and first name, an address and a phone number. This…Write a program in Java to implement a Singly linked list with two fields: String name and Integer Age. a) Then, Program ask user to enter name and age of a student, and add the node in the link list b) Store name and age of 5 students c) Then, traverse the link List to print all the nodes
- in java how do we reverse a queue using an arraywrite a method that takes two array of customer and what they need and compare them to see if if the what customer wants is present in the front or else send the customer to back. Use queue data structure. Use the following code to complete. import java.util.LinkedList; import java.util.Queue; public class MyQueue{ public int Customer(String[] cust, String[] object) { Queue<String> queue = new LinkedList<>(); // write your logic here } example:- cust[] = { P, P, O, O } object[] = { O, P, P, O} since customer P doesn,t want O send it back. loop this to find out how many customers will end up having no object.}Write a program in Python to show how a queue works using empty, size, front, back, push item onto queue, and push item off queue.
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