Write a program to maintain a list of items as a circular queue, which is implemented using an array. Simulate insertions and deletions to the queue and display a graphical representation of the queue after every operation.
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- Write a program to maintain a list of items as a circular queue, which isimplemented using an array. Simulate insertions and deletions to the queue anddisplay a graphical representation of the queue after every operation.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
- 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.Write a java code that sorts a list of n items by dividing it into three sublistsof about n/3 items, sorting each sublist recursively and merging the threesorted sublists. Analyze your algorithm, and give the results under ordernotation.Write a program in Java to implement the Insertion sort algorithm to sort a given set of elements and determine the time required to sort the elements. Repeat the experiment for different values of n, the number of elements in the list to be sorted, and plot a graph of the time taken versus n. The elements can be read from a file or can be generated using the random number generator
- Implement a city database using ordered lists. Each database record contains the name of the city (a string of arbitrary length) and the coordinates of the city expressed as integer x and y coordinates. Your database should allow records to be inserted, deleted by name, and searched by name. Another operation that should be supported is to print all records within a given distance of a specified point/coordinate. The order of cities should be alphabetically by city name. Implement the database using: an array- based list implementation. By using JAVA.Using the picture, use Java to design and implement the class PascalTriangle that will generate a Pascal Triangle from a given number of rows. Represent each row in a triangle as a list and the entire triangle as a list of these lists, implement the class ArrayList for these lists.Implement a priority queue (for both max and min, one time the bigger numbers should have higher priority, other time the smaller numbers should have higher priority ) in python using a linked list. The priority queue should have four functions, 1/ insert(item, priorityValue), peek(), delete(), changePriority(item, newPriority).
- implement a randomized queue where the item removed is chosen uniformly at random among items in the data structure. (using java)Implement a nested class DoubleNode for creating doubly-linked lists, with each node containing a reference to the item before and following it in the list (empty if no such item exists). Then, for the following jobs, implement static methods: insert at the beginning, insert at the end, remove from the beginning, remove from the end, insert before a given node, insert after a given node, and remove a given node.Write a Java program that would resemble banking transactions of deposits, withdrawals, bank to bank transfers, and interest computations. A transaction input window is to be used in entering the account number, transaction code, and amount. Search a 2d-arraylist containing account number and the current balance, and then do the appropriate update on the 2d-arraylist depending on the transaction code. If the transaction code is “D”, update the current balance by adding the amount; if “W”, update the current balance by subtracting the amount from the current balance provided that withdrawal transaction is allowed (current balance must be greater than the amount to be withdrawn, and the resulting balance must not be less than 500). Display the updated 2d-arraylist before exiting the program. Design your own input/output windows. ( USE OOP CONCEPT AND JOPTION)