Hello, I'm having difficulty with question 2.7 as I'm unsure how to proceed with it. Could you please create a state diagram of a pushdown automaton for part B? It would be greatly helpful if you could provide screenshots or drawings for a visual aid. I specifically need assistance with question 2.7, part B. question for 2.7 2.7 Give informal English descriptions of PDAs. b. The complement of the language {a n b n | n ≥ 0}

Now we want to create an Object oriented System for a shopping mall. It has Items with name, manufacturer and price. Provide constructors. Getters, setters, toString methods. We add several items to Store. For that create a store class having name and arraylist of items, Provide Constructors, getters/setters and toString(), in addition you have to provide a method add which add new item to the array. The main function that does these things looks as follows: Public static void  main(Strings[] args) { Item shampoo2(“pantene”, “Procter & Gamble”,100), noodles(“Noodles”, “knorr”, 50); // add further items. Store abcSuperStore; abcSuperStore.add(shampoo2); abcSuperStore.add(noodles); … abcSuperStore.sale(shampoo2); a bcSuperStore.sale(noodles);

Language is C++ Rare Collection. We can make arrays of custom objects just like we’ve done with ints and strings. While it’s possible to make both 1D and 2D arrays of objects (and more), for this assignment we’ll start you out with just one dimensional arrays: directions as follows in the pictures

Below we have class diagrams with three classes for a simple java based parking management class. Use the classes below to write java code for classes :a parking observer class (that implements an observer pattern)  , a transaction manager class and a parking lot class(subject to the observer). Use the class diagram and java class to implement it. You should use an observer pattern to implement your code.The main goal is to implement the following - Once a car enters (in an entry-scan only lot) or leaves (in an entry-scan and exit-scan lot), then the ParkingObserver will be updated, and then can register the charge with the parking system via the TransactionManager’s park() method

Implement a C++ program to develop a class Library. Library contains pile of books as array and each book comprises of ISBN, Name, Author Name, Publisher Name, Issue Date, Return Date. A library will contain more than 50 books.  please also write comments

Ro-Sham-Bo. Believe it or not, the classic game of Rock-PaperScissors has many other names. One of them is Ro-Sham-Bo. For this assignment, “Ro” will represent “Rock”, “Sham” will represent Paper, and “Bo” will represent Scissors. You will create a RoshamboPlayer class in C++. It will have three attributes: PlayerName: String RoLimit: int ShamBoLimit: int It will also have an overloaded constructor that sets those three values. It will have two functions: playRound that takes in a string and returns a boolean value, and getName that takes in nothing and returns the PlayerName string. In your driver class for this assignment, you will create two RoshamboPlayer objects with the following values: p1: RoLimit == 30, ShamBoLimit == 60 p2: RoLimit = 40, ShamBoLimit = 85 You may name them whatever you like. You will prompt the user to choose one of these two to play against. Then you will create a loop that prompt the user to either play a round of Roshambo, or quit the game. If the user…

Must be done in C# Rare Collection. We can make arrays of custom objects just like we’vedone with ints and strings. While it’s possible to make both 1D and 2D arrays of objects(and more), for this assignment we’ll start you out with just one dimensional arrays.Your parents have asked you to develop a program to help them organize the collectionof rare CDs they currently have sitting in their car’s glove box. To do this, you will firstcreate an AudioCD class. It should have the following private attributes. String cdTitle String[4] artists int releaseYear String genre float conditionYour class should also have the following methods: Default Constructor: Initializes the five attributes to the following default values:◦ cdTitle = “”◦ artists = {“”, “”, “”, “”}◦ releaseYear = 1980◦ genre = “”◦ condition = 0.0 Overloaded Constructor: Initializes the five attributes based on values passedinto the formal parameters◦ If condition is less than 0.0 or greater than 5.0, set it equal to…

A renowned software company in Bangladesh is going to develop a system for parallelogram. Now, consider yourself as a programmer of that project and develop the following class: Parallelogram -base: double -height: double + Appropriate Property(s) + Appropriate Constructor(s) + GetVolume(): double + ToString(): string (1) Method GetVolume() returns the volume(bxh) of a parallelogram object. (2) Method ToString() returns the string representation of a parallelogram object Example:parallelogram [base: 4cm; height: 2cm] PARALLELOGRAM do not need to write the main method Height Base Sub: C#

Please code in JAVA and follow the instructions as it is mentioned.. please refer the images provided for scope and proper output making a retro-style game called Zeldar. You've been tasked to implement the player movement. The game is top- down, with the overworld modeled as a 2d grid. The player's location is tracked by x,y values correlating to its row and column positions within that grid. Given the current position of the player and a sequence of input commands: w,a,s,d you must determine the new position of the player.Facts● the player's position is modeled using two integer values (x, y)● x represents the column position, left-right axis● y represents the row position, up-down axis● “w” move up by decreasing y by 1● “a” move left by decreasing x by 1 ● “s”  move down by increasing y by 1 ● “d” move right by increasing x by 1InputThe input will begin with a single line containing the number of test cases to execute. The next line should consist of the starting (x,y) position of…

Are there obvious improvements that could be made here with respect the software design for Squares and Circles? What programming constructs were you familiar with, and which did you need to look up? Assume we used a separate array for Squares and for Circles rather than one unifying Object array. How would this complicate the task of adding a new Shape (say, a Triangle) to our ObjectList class?