Generate the parse tree for the following statement with help of following grammar (the grammar image is attached). x=(p-q)+(p-r)+(p-r)
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Generate the parse tree for the following statement with help of following grammar (the grammar image is attached).
x=(p-q)+(p-r)+(p-r)
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- Student – with no parameters, initialize all the data members to 0 or null. Data Members studentNo – int fname – String lname – String course – String Method Members setStudentNo – to set the student number of the student setFname – to set the firstname of the student setLname – to set the lastname of the student setCourse – to set the course of the student getStudentNo – to get the student number of the student getFname – to get the firstname of the student getLname – to get the lastname of the student getCourse – to get the course of the student// Declare data fields: a String named customerName, // an int named numItems, and // a double named totalCost.// Your code here... // Implement the default contructor.// Set the value of customerName to "no name"// and use zero for the other data fields.// Your code here... // Implement the overloaded constructor that// passes new values to all data fields.// Your code here... // Implement method getTotalCost to return the totalCost.// Your code here... // Implement method buyItem.//// Adds itemCost to the total cost and increments// (adds 1 to) the number of items in the cart.//// Parameter: a double itemCost indicating the cost of the item.public void buyItem(double itemCost){// Your code here... }// Implement method applyCoupon.//// Apply a coupon to the total cost of the cart.// - Normal coupon: the unit discount is subtracted ONCE// from the total cost.// - Bonus coupon: the unit discount is subtracted TWICE// from the total cost.// - HOWEVER, a bonus coupon only applies if the…Add 2 constructors to the Course class. One that takes no arguments and initializes the data to all 0’s and “” (empty strings). And one constructor that takes all 4 arguments, one argument for each property and then sets the properties to these arguments that are passed in. Lastly change the main to use these new Constructors. You will not need to call the set functions any more, but do not remove the set functions from your class. Main Code à Course c1; c1 = new Course(323, “Intro to Php”, “Intro to Php Programming”, 4); c1.display(); Problem #2: Do the same as above for the Account class. Problem #3: Do the same as above for the Person class. Below is my Course code public class Course { int Courzeld; String CourteName; String Description; int creditHours; void display() { System.out.println("Course ID: " + Courzeld); System.out.println("Course Name: " + CourteName); System.out.println("Description: " + Description);…
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- Customer This class should now implement the Comparable interface. Customer instances should be ordered by their last name, then first name, and finally the name of their associated building. toString() - Add this method that returns a String with the following format: <lastName>, <firstName> Reading This class should now implement the Comparable interface. Reading instances should be ordered by their timestamp. XmlHandler The following methods should be updated: startElement() - The handler logic should be modified such that it can now create and associate Customer, Building, Room, Device, and Reading objects. endElement() - Modify this method such that the current customer instance is added to the ArrayList of customers when a closing customer element is encountered. No hand written and fast answer pleaseJavascript toggleCommentSection function The function toggleCommentSection should exist. The function toggleCommentSection should return undefined if not passed a parameter. The function toggleCommentSection should return null if passed a parameter that does not match a post ID. The function toggleCommentSection should select and return the correct section element. The function toggleCommentSection should toggle the 'hide' class on the section The following are requirements of the function toggleCommentSection: element.toggleCommentSection a. Receives a postId as the parameter b. Selects the section element with the data-post-id attribute equal to the postId received as a parameter c. Use code to verify the section exists before attempting to access the classList property d. At this point in your code, the section will not exist. You can create one to test if desired. e. Toggles the class 'hide' on the section element f. Return the section element Here is what I have so far:…Book Donation App Create a book-app directory. The app can be used to manage book donations and track donors and books. The catalog is implemented using the following classes: 1. The app should have donors-repo.js to maintain the list of donors and allow adding, updating, and deleting donors. The donor object has donorID, firstName, lastName, and email properties. This module should implement the following functions: • getDonor(donorId): returns a donor by id. • addDonor(donor): adds a donor to the list of donors; donorID should be autoassigned a random number. • updateDonor(donor): updates the donor having the matching donorID. • deleteDonor(donorID): delete the donor with donorID from the list of donors, only if they are not associated with any books. 2. The app should have books-repo.js to maintain the list of donated books and allow adding, updating, and deleting books. The book object has bookID, title, authors, and donorID properties. • donorID references the book’s donor. This…
- C++ please. Upvote for good answers Question is located in main.cc ---------------------- bubble.h -------------------------- #include <string> #include "cpputils/graphics/image.h" class Bubble {public:// Member functions of the Bubble class.// These member functions are called "setters" or "setter functions"// because they SET the member variables to the given input.void SetX(int x);void SetY(int y);void SetSize(int size);void SetColor(std::string color);.graphics::Color GetColor();int GetX();int GetY();int GetSize();std::string ToString(); private:// Member variables of the Bubble class.int x_ = 0;int y_ = 0;int size_ = 0;graphics::Color color_;}; --------------------------------- bubble.cc ------------------------------ #include "bubble.h" #include <map>#include <string> void Bubble::SetX(int x) { x_ = x; } void Bubble::SetY(int y) { y_ = y; } void Bubble::SetSize(int size) { size_ = size; } graphics::Color Bubble::GetColor() { return color_; } int Bubble::GetX() {…Plagarism contents will downvote List any three functions of I/O interface.Three data members: length, width, and height. All data members are of type Distance. Two overloaded constructors: one that takes no argument and the other that takes three arguments. Zero argument constructor initializes data members from 0 whereas three argument constructor initializes data members from the passed arguments. At least one of the constructors should use an initializer list. A copy constructor. Three getters and three setters corresponding to three data members. A member function named volume that returns the volume of a Box object, i.e., length*width*height. Three member functions named greaterThan, lessThan and equalTo to compare two Box objects based on their volume. Each function must return a Boolean value. A static data member count(int) which is used to count Box objects active at any time. A getter for count. The class must contain a few constant functions (decide which of the above functions are good candidates for that) By using c++