1) Inside a class, this can be used to
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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
Need java help.
1) Inside a class, this can be used to
a) call a constructor from within the body of any function
b) call a constructor from within the body of another constructor
c) initialize the super class
d) initialize the methods of the class
e) print the contents of class
2)
Which one of the following Java statements allocates an array a of type T[] where T is a generic? Assume capacity is an integer.
a) a=new T[capacity];
b) a=new Object[capacity];
c) a=new (T[]) Object[capacity];
d) a=(T[]) new Object[capacity];
e) None of the above
Step by step
Solved in 4 steps
- Upcasting and downcasting objects are the same as casting primitive types.a) Trueb) FalseReadme.md: Stars(C++) This lab exercise will practice creating objects with constructors and destructors and demonstrate when constructors and destructors are called. Star Class Create a class, Star. A Star object has two member variables: its name, and a solar radius. This class should have a constructor which takes a std::string, the name of the star, and a double, the solar radius of the star. In the constructor, the Star class should print to the terminal that the star was born. For example, if you create a Star as follows: Star my_star("Saiph", 22.2); Then the constructor should print: The star Saiph was born. In the destructor, the Star class should print to the terminal that the star was destroyed, along with the number of times the volume of the sun that that star was, formatted to two decimal places. Hint: use the following line to set the precision to 2 decimal places: std::cout << std::fixed << std::setprecision(2); For example, when my_star above has its…Class Implementationa) Implement a class PlayCard with three attributes, rank, suit, and players.b) Implement an init method with an optional parameter type: 1) Set the default value of rank to "queen", suit to "hearts" and players to 4.c) Implement a display method to print the values of rank, suit, and players as the example output below.d) Instantiate two objects of type PlayCard, treasure with arguments "king", "diamonds", 2, and banker without any arguments.e) Call display() to print rank, suit, and players of treasure and banker.Just make sure to precisely match the output format below.Write your code in the ANSWER area provided below (must include comments if using code is not covered in the course)Example OutputRSP: king | diamonds | 2RSP: queen | hearts | 4
- Q1) Choose the correct answer 1) Overloaded methods always have the same a. return type b. method name c. number of parameters d. order of the parameters 2) It's possible to have several methods with the same name that each operate on different types or numbers of arguments. This feature is called method a. method overriding b. method calling c. method naming d. method overloading. 3) Class Arrays provides method for comparing arrays. a. compare b. compares c. equal d. equals 4) Class represents a dynamically resizable array-like data structure. a. Array b. ArrayList c. Arrays d. None of the above 5) Static class variables: a. are final. b. are public. c. are private. d. are shared by all objects of a class. 6) A method is called by preceding the method name with its class name and a dot. a. static b. dynamic C. void d. public 7) Which of the following tasks cannot be performed using an enhanced for loop? a. Calculating the product of all the values in an array. b. Displaying all even…Question 2: (TicTacToe Class) Create a class TicTacToe that will enable you to write a complete program to play the game of tic-tac-toe. The class contains as private data a 3-by-3 two-dimensional array of integers. The constructor should initialize the empty board to all zeros. Allow two human players. Wherever the first player moves, place a 1 in the specified square. Place a 2 wherever the second player moves. Each move must be to an empty square. After each move, determine whether the game has been won or is a draw. If you feel ambitious, modify your program so that the computer makes the moves for one of the players. Also, allow the player to specify whether he or she wants to go first or second.C++ OOP Create a Student class, where attributes associated with each student are name, registrationnumber, father name, degree and department. All attributes should not be accessed directly.One can view the details of all students. Note student attributes can not be changed by anymeans after initialization. (Hint use constant objects).In student class maintaining student count means your program could be able totell the count of student objects created. (User static counter variable)
- Bank Accounts (Use Python) Write a program that accepts bank transactions and prints out the balance of an account afterwards. PROGRAM DESIGN Create a class named bankAccount. A bank account should have the following attributes: accNumber, balance, and dateOpened. This class should also have the option to do the following transactions: deposit, withdraw and drop. Initially there is only one bankAccount active in the program, with a balance amount of 1515, and was opened back in 10/01/1987. Depositing adds to a current bankAccount’s balance, while withdrawing – does otherwise. Dropping would equate the current balance to zero. Refer to the following class diagram for more details about the current bankAccount: bankAccountaccNumber = 1balance = 1515dateOpened = "10/27/1987" deposit(dep)withdraw(wd)drop(accNumber) INPUTThe input would be a string that contains the following data: the transaction to be done (dep – for deposit, wd – for withdraw and drop – for drop), the accNumber, and…C++ PROGRAMS: Question#1:Define a class for rectangle objects defined by two points, the top-left and bottom-right corners of the rectangle. Include a constructor to copy a rectangle, a method to return a rectangle object that encloses the current object and the rectangle passed as an argument, and a method to display the defining points of a rectangle. Test the class by creating four rectangles and combining these cumulatively to end up with a rectangle enclosing them all. Output the defining points of all the rectangles you create.Question#2:Define a class, mcmLength, to represent a length measured in meters, centimeters, and millimeters, each stored as integers. Include methods to add and subtract objects, to multiply and divide an object by an integer value, to calculate an area resulting from the product of two objects, and to compare objects. Include constructors that accept three arguments—meters, centimeters, and millimeters; one integer argument in millimeters; one double…# 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…
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