What is the difference between a class and an instance of a class? What is the difference between an array and a struct?
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- : A designer in 3D graphics company wants to design a matrix as a two-dimensional array. The size of 2D array could be the last two digit of arid number. Initially he creates a class matrix that provides the member function to check that no array index is out of bounds. Make the member data in the matrix class a 10-by-10 array. A constructor should allow the programmer to specify the actual dimensions of the matrix (provided they’re less than 10 by 10). The member functions that access data in the matrix will now need two index numbers: one for each dimension of the array. Here’s what a fragment of a main() program that operates on such a class might look like: If my Arid Number is 20-Arid-254 then: // in case of zero consider next digit matrix m1(5, 4); // define a matrix object int temp = 12345; // define an int value m1.put(3, 4, temp); // insert value of temp into matrix at 3,4 temp = m1.get(3, 4); // obtain value from matrix at 3,4In java Define and create an array (called emps) of object references for objects of class Employee of length 100. (b) Create three objects for classes SalariedEmp, WeeklyEmp, and HourlyEmp (where these 3 classes are subclasses of class Employee); and with references e1, e2, e3 for the 3 objects:(c) Assign e1,e2, e3 to the first three elements of array emps:(d) Print the earnings of the 100 employee in the array emps in one loop (with polymorphism) where earnings are calculated with method earnings():Create a class IntArray. Create two constructors. Nullary constructor create an array of size 10 and initiazes all values to 0. Parametrized constructor has signature IntArray(int num, int s). Thiscreates an array of size s and initializes all values. c++
- using C++ 1- Creates a class called Member with two integer x and y.a. Add a constructor able to create a Member object with tow integers and the default values 0,0.b. Add the methods setX and setY to modify the attributes x and y; [2 Markc. Add the method display able to display the attributes. 2- A Stack is a special array where the insertion and deletion will be via a specific index called "head". A Stack is characterized by 3 attributes:a. capacity (int): the maximum number element Member that can be contained into the Stack.b. head: presents the index where we can add/remove element to the Stack. The head value presents also the current number of elements into the Stack. When a Stack is created the initial value of head is 0.c. Member content[]: an array of elements of type Member. Creates the class Stack with the following methods:a. bool empty(): this method returns true if no element exists in the Stack. b. bool full(): this method returns true if there are no place to add a…Java Programming Assignment 7.1 Using Java create an interactive (the user should be able to input the values) Java Application to process your utility bill for at-least 6 months. Use Class-Object methodology and use single dimensional arrays in your application. Write detailed comments in your program. You should have a two classes (for example, MontlyBill.java & MontlyBillTest.java). You can also be creative and create your “own problem scenario” and come up with your “solution”.SV What is polymorphism. What is packed array
- Language: C++ Imagine that you are in the design stage of a software system for handling the data of the partici- pants of a major soccer tournament. As different roles will be present (players, coaches, referees, etc.) you are required to develop a class handling the data of a generic league member. For each person the following data is at least needed • first name as character array (36 characters characters including '\ 0') • last name as character array (36 characters) • date of birth as character array (11 characters, storage format is yyyy-mm-dd) In addition the whole team is located somewhere, so location is an additional static prop- erty of the class. Design and implement a class for holding these data. In addition add at least two other general properties to this class. The class, which will be called TournamentMember, should provide constructors (empty and parametric), a destructor and also a copy constructor. The class should also provide inline setter and getter methods…- Three interfaces ForTwoD, Shape and ForThreeD- TwoD class implements ForTwoD and Shape interfaces- ThreeD class implements ForThreeD and Shape interfaces- Four subclasses to TwoD (Circle, Rectangle, Triangle and Trapezoid)- Three subclasses to ThreeD (Cube, Tetrahedron, Sphere)-Implement the Shape hierarchy as shown in the above diagram- Basically, each two-dimensional shape needs to compute itsarea and its perimeter.- Each three-dimensional shape needs to compute its area(also known as surface area) and its volume.- Try to surf the internet to look for some formulas, for example, tocompute the areas, the surface areas, and the volumes … I did that tooA more detailed UML diagram is shown as follow: (Note that the #’s beforethe instance variables and the methods’ names mean “protected”) - Enum class defines some enum constants (various colors, feel free tochange)- The main interface should be the Shape interface consists of only oneabstract method, the area method. You can put some…C# (Shape Hierarchy) Implement the Shape hierarchy of. Omit the Triangle and Tetrahedron classes. Each TwoDimensionalShape should contain read-only abstract property Area to calculate the area of the two-dimensional shape. Each ThreeDimensionalShape should have read-only abstract properties Area and Volume to calculate the surface.area and volume, respectively, of the three-dimensional shape. Create an app that uses an array of Shape references to objects of each concrete class in the hierarchy. Display a text description of the object to which each array element refers. Also, in the loop that processes all the shapes in the array, determine whether each shape is a TwoDimensionalShape or a ThreeDimensionalShape. If a shape is a TwoDimensionalShape, display its area. If a shape is a ThreeDimensionalShape, display its area and volume.
- Design a new class that contains a print and read function by creating a new object and calling the print and reading functions inside the case ( data structure in java)# Coding - Simulate a robot Write a program that simulates the movements of a robot. The robot can have three possible movements: turn right turn left advance The robot is placed on a hypothetical infinite grid, facing a particular direction (north, east, south, or west) at a set of `{x,y}` coordinates,e.g., `{3,8}`, with coordinates increasing to the north and east. Create a Class `Robot` that contains a method `execute` which given a number of instructions will calculate the robot's new position, and the the direction in which it is pointing. ## Example The letter-string "RAALAL" means: Turn right Advance twice Turn left Advance once Turn left yet again Say a robot starts at `{7, 3}` facing north. Running this stream of instructions should leave it at `{9, 4}` facing west. ## Inputs and Outputs The argument of the `execute` is `string` in the format `X Y BEARING COMMANDS`. The method should return a one-liner `string` in the format `X Y BEARING`. In the…Python The base class Pet has attributes name and age. The derived class Dog inherits attributes from the base class Pet class and includes a breed attribute. Complete the program to: Create a generic pet, and print the pet's information using print_info(). Create a Dog pet, use print_info() to print the dog's information, and add a statement to print the dog's breed attribute. Ex: If the input is: Dobby 2 Kreacher 3 German Schnauzer the output is: Pet Information: Name: Dobby Age: 2 Pet Information: Name: Kreacher Age: 3 Breed: German Schnauzer