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- Point out errors in the following codes and correct them publicclass CheckingAccount { // Create attributes account Num, Balance privateint accountNum; // Account Number privatedouble balance; // Account balance // Constructor public void CheckingAccount(int aNum, double balance) { // Call setters to initialize attribute values setAccountNumber (aNum); setBalance; } // Setters public void setAccountNumber(int aNum) { if (accountNum >= 100) { accountNum = aNum; } else {System.out.println("This account number is invalid (Account number must be at least 3 digits)!"); this.accountNum = 100; // assign a default value } } public void setBalance(double aBalance) { // make sure the value is positive if (aBalance > 0) { aBalance = balance; } else { System.out.println("This balance value is invalid (input must be positive)!"); aBalance = 0; // assign a default value } } // Getters publicvoid getAccountNumber() { return accountNum; } public void getBalance() { return balance; }…Design a class named StopWatch. The class contains:■■ Private data fields startTime and endTime with getter methods.■■ A no-arg constructor that initializes startTime with the current time.■■ A method named start() that resets the startTime to the current time.■■ A method named stop() that sets the endTime to the current time.■■ A method named getElapsedTime() that returns the elapsed time for thestopwatch in milliseconds.Draw the UML diagram for the class then implement the class. Write a test programthat measures the execution time of sorting 100,000 numbers using selection sort.Create an Employee class. Attributes(must be private): Employee has a name and basic_salary Methods:Employee(string, float); //ConstructorAllowances are computed as: float getHouseRent(); //House rent is 45% of the basic pay. float getMedicalAllowance(); //Medical Allowance is 5% of the basic pay. float getConveyanceAllowance(); //Conveyance allowance is 10% of the basic payfloat getGrossPay(); //Salary including rent and allowances{You can implement additional function/s if needed} Then Create an Organization class. Organization has 10 Employees (Hint: You will need an array of pointers to Employee class) Organization can calculate the total amount to be paid to all employees Organization can print the details(name & salary) of all employees Note: Use main,header and functions.cpp to write code.
- class implementation file -- Rectangle.cpp class Rectangle { #include #include "Rectangle.h" using namespace std; private: double width; double length; public: void setWidth (double); void setLength (double) ; double getWidth() const; double getLength() const; double getArea () const; } ; // set the width of the rectangle void Rectangle::setWidth (double w) { width = w; } // set the length of the rectangle void Rectangle::setLength (double l) { length l; //get the width of the rectangle double Rectangle::getWidth() const { return width; // more member functions hereInformation: Java Script There are two types of accounts - S for short term contract and L for long term contract. 3.1 Create an Employee objects project. Create an Employee class and use the provided UML diagram to code the instance fields, constructors and methods. 3.1.1 Both constructors must increment the static numberOfEmp field by one. Both constructors must call the setEmpCode() method to compile a code for the employee. Both constructors must call the setCommission() method. 3.1.2 setEmpCode() method: The empCode must be constructed in the following way: First character is the type of contract Next three characters a random 3 digits Add a backslash and the number of objects value to the code NOTE: You have to use the Random class in your code (See Ch 9). Do NOT use the Math.random() method. Example of code: S781/1 Explanation: Short term contracts (S), 781 is the 3-digit random value, first employee object. 3.1.3 setCommission() method: Assign a basic amount to the…Hints: • For each class, it is required to implement constructors, setters, getters, toString() method, and any other necessary method • If the user tries to do an operation that could violate the state of objects, the operation should be ignored and the application should display an error message (e.g. adding a passenger to the same trip twice, etc.) Checking equality of any 2 objects should be done via the equals() method • • Testing: After implementing the required classes, design and implement a testing class to test them as follows: There is a class that will do the main job of as follows: o It has one collection to store the whole data (all trips) o It has static methods, one for each operation happens frequently o For each adding or removing operation, a message should be displayed to the user to explain the status of the operation (i.e. if it was successful or not) • Create at least 7 trips in at least 3 different dates and add them to the collection that stores the whole data…
- Class: Square Create a class called "Square", which is inherited from“TwoDimensionShape” class. The "Square" class is used to calculate theArea and the Perimeter of square shapes when their side-length is given, or in contrast,finding the side-length of the square when the Area or the Perimeter of the square is given.The specifications of this class are below. Data Members (Attributes): All are private. sideLength: the sidelight (L) of the square. Methods/Operations/Getters/Setters: Default Constructor: when creating an object this constructor must set the side-length of the square by calling the method setSideLength(). Also, this constructor willcall the findArea() and the findPerimeter() in addition to summaryPrint() to calculateand print all needed information. User-Defined Constructor: when creating an object this constructor shouldfind the side-length of the square by calling the method findSquareSideLength()and pass the Area or the…Lab Goal : This lab was designed to teach you more object oriented programming and start you down the path of creating larger programs and games like BlackJack and Elevens [ one of the new AP CS A Labs ]. You will create a Deck class that contains a List < Card >Lab Description : You need to design a class that contains an instance variables which is a List < Card > and an int that keeps track of the top card position . You then need to make a constructor and related methods. You will need a dealCard method and a shuffle method. Use the template shown below. /make a Deck classpublic static final int NUMCARDS = 52;public static String[] SUITS = "CLUBS HEARTS DIAMONDS SPADES".split(" ");private List<Card> cards;private int top;//make a Deck constructor//refer cards to new ArrayList//set top to the top of the deck 51//loop through all suits//loop through all faces 1 to 13//add a new BlackJackCard to the deck//make a dealCard() method that returns the top card//write…Colorful bubbles In this problem, you will use the Bubble class to make images of colorful bubbles. You will use your knowledge of classes and objects to make an instance of the Bubble class (aka instantiate a Bubble), set its member variables, and use its member functions to draw a Bubble into an image. Every Bubble object has the following member variables: X coordinate Y coordinate Size (i.e. its radius) Color Complete main.cc Your task is to complete main.cc to build and draw Bubble objects based on user input. main.cc already does the work to draw the Bubble as an image saved in bubble.bmp. You should follow these steps: First, you will need to create a Bubble object from the Bubble class. Next, you must prompt the user to provide the following: an int for the X coordinate, an int for the Y coordinate, an int for the Bubble's size, and a std::string for the Bubble's color. Next, you must use the user's input to set the new Bubble object's x and y coordinates, the size, and the…
- Design a class named StopWatch. The class contains:■ The private data fields startTime and endTime with get methods.■ A constructor that initializes startTime with the current time.■ A method named start() that resets the startTime to the current time.■ A method named stop() that sets the endTime to the current time.■ A method named getElapsedTime() that returns the elapsed time for thestop watch in milliseconds.Draw the UML diagram for the class, and then implement the class. Write a test program that measures the execution time of adding numbers from 1 to 1,000,000.Software Requirements: • Latest version of NetBeans IDE • Java Development Kit (JDK) 8 Procedure: 1. our progras from rhFactor non-static and private. Remove the constructor with two (2) parameters. 2o upply uncapsutation Make bloodType and 2. The names of the public setter and getter methods should be: • setBloodType() • setRhFactor() getBlood Type() getRhFactor() 3. Use the setter methods to accept user input. 4. Display the values by calling the getter methods. Sample Output: Enter blood type of patient: Enter the Rhesus factor (+ or -): O+ is added to the blood bank. Enter blood type of patient: B Enter the Rhesus factor (+ or -): B- is added to the blood bank.In main.py define the Student class that has two attributes: name and gpa Implement the following instance methods: • A constructor that sets name to "Louie" and gpa to 1.0 set_name(self, name) - set student's name to parameter name get_name(self) - return student's name set_gpa(self, gpa) - set student's gpa to parameter gpa get_gpa(self) - return student's gpa Ex. If a new Student object is created, the default output is: Louie/1.0 Ex. If the student's name is set to "Felix" and the gpa is set to 3.7, the output becomes: Felix/3.7