Please create an object of CPlusPlus. The object name is myObject. class CPlusPlus { int n; }; int main() { return 0;
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- Rectangle Object Monitoring Create a Rectangle class that can compute the total area of all the created rectangle objects using static fields (variables). Remember that a Rectangle has two attributes: Length and Width. Implement the class by creating a computer program that will ask the user about three rectangle dimensions. The program should be able to display the total area of the three rectangle objects. For this exercise, you are required to apply all OOP concepts that you learned in class. Sample output: Enter Length R1: 1 Enter Width R1: 1 Enter Length R2: 2 Enter Width R2: 2 Enter Length R3: 3 Enter Width R3: 3 The total area of the rectangles is 14.00 Note: All characters in boldface are user inputs.public class ItemToPurchase { private String itemName; private int itemPrice; private int itemQuantity; // Default constructor public ItemToPurchase() { itemName = "none"; itemPrice = 0; itemQuantity = 0; } // Mutator for itemName public void setName(String itemName) { this.itemName = itemName; } // Accessor for itemName public String getName() { return itemName; } // Mutator for itemPrice public void setPrice(int itemPrice) { this.itemPrice = itemPrice; } // Accessor for itemPrice public int getPrice() { return itemPrice; } // Mutator for itemQuantity public void setQuantity(int itemQuantity) { this.itemQuantity = itemQuantity; } // Accessor for itemQuantity public int getQuantity() { return itemQuantity; }} import java.util.Scanner; public class ShoppingCartPrinter { public static void main(String[] args) { Scanner scnr = new…Focus on classes, objects, methods and good programming style Your task is to create a BankAccount class. Class name BankAccount Attributes _balance float _pin integer Methods init () get_pin() check pin () deposit () withdraw () get_balance () The bank account will be protected by a 4-digit pin number (i.e. between 1000 and 9999). The pin should be generated randomly when the account object is created. The initial balance should be 0. get_pin () should return the pin. check_pin (pin) should check the argument against the saved pin and return True if it matches, False if it does not. deposit (amount) should receive the amount as the argument, add the amount to the account and return the new balance. withraw (amount) should check if the amount can be withdrawn (not more than is in the account), If so, remove the argument amount from the account and return the new balance if the transaction was successful. Return False if it was not. get_balance () should return the current balance.…
- class City(object): county = "Lake" population = 3000000 def -_init__(self, name, state): self.name = name self.state = state def region(self): return "Midwest" a) create an instance of this object, called X, for Chicago, Illinois b) return the population of the instance X c) change the county of the instance X from Lake to Cook d) return the name of the state of the instance X d) call the method region() on the instance Xint getUpperScore(){ int upperScore = 0; for(int i = ONES; i <= SIXES; i++){ upperScore += score[i]; } return upperScore + getBonusScore(); } //Returns the score of the upper part of the board int getLowerScore(){ int lowerScore = 0; for(int i = THREE_OF_KIND; i <= YAHTZEE; i++){ lowerScore += score[i]; } return lowerScore; } //Returns the bonus points int getBonusScore(){ const int UPPER_SCORES_THRESHOLD = 63; const int BONUS_POINTS = 35; if(getUpperScore() >= UPPER_SCORES_THRESHOLD){ return BONUS_POINTS; } return 0; } //Returns the total score int getTotalScore(){ return getUpperScore() + getLowerScore(); } Test 10: Check upper board and having bonus correctly (0/3) failedPurpose To review interfaces Directions Your task for this lab is to implement and test a class to store ratings of items. Your Rating class should have the following fields and methods: private double sumOfRatings - the sum of all of the ratings private int raters - the number of people who have rated an item public Rating () initialize both fields to zero public Rating (double sumofRatings, int raters) - initialize the fields to the parameter values public void addRating (double newRating) - increase the sumOfRatings by newRating and increase the number of raters by one public double getAverageRating () return the average rating; if there are no raters so far, return 0.0 public String toString() - display the average rating and how many reviews it is based on; for example, if the sum of the ratings is 32 and that is based on ratings from ten people, the toString method will return "3.2 based on 10 reviews"
- Java class Main { publicstaticvoid main(String[] args) { // Coin myPenny = new Coin(CoinType.PENNY); // Coin myNickel = new Coin(CoinType.NICKEL); // Coin myDime = new Coin(CoinType.DIME); // Coin myQuarter = new Coin(CoinType.QUARTER); // Coin myHalfDollar = new Coin(CoinType.HALF_DOLLAR); // Coin myDollar = new Coin(CoinType.DOLLAR); // System.out.println(printValue(myPenny)); // System.out.println(printValue(myNickel)); // System.out.println(printValue(myDime)); // System.out.println(printValue(myQuarter)); // System.out.println(printValue(myHalfDollar)); // System.out.println(printValue(myDollar)); } publicstatic String printValue(Coin c){ String result = ""; // result = String.format("The value of a %s is $%.2f", c.getName(), c.getValue()); return result; } }StarShip # Color bodyColor + StarShip() + void move( int ) + setColor( ) FederationStarShip # int RegNumber # int weight + FederationStarShip() + void setReg( int) + int getWeight ( ) + void setWeight( ) + setColor( Color ) GalaxyClassStarShip # int weaponLoad + GalaxyClassStarShip( ) + void move( int ) + void firePhaser() 1. Based on the diagram above, which is the correct declaration for the class FederationStarShip? 2. Based on the diagram above, the FederationStarShip class definition should contain a public method named, getWeight. Which classes can execute this method? 3. Based on the diagram above, the StarShip class should contain an instance variable declaration, protected Color bodyColor; which classes that are able to access this variable.Assignment:The BankAccount class models an account of a customer. A BankAccount has the followinginstance variables: A unique account id sequentially assigned when the Bank Account is created. A balance which represents the amount of money in the account A date created which is the date on which the account is created.The following methods are defined in the BankAccount class: Withdraw – subtract money from the balance Deposit – add money to the balance Inquiry on:o Balanceo Account ido Date created
- package assignment; public class Circle2D2 { //data fields specifying the center of the circle private double x, y; //data field radius private double radius; //default circle with (0, 0) for (x, y) and 1 for radius Circle2D2() { this(0, 0, 1); } //circle with the specified x, y, and radius Circle2D2(double x, double y, double radius) { this.x = x; this.y = y; this.radius = radius; } //return x public double getX() { return x; } //return y public double getY() { return y; } //return radius public double getRadius() { return radius; } //return the area of the circle public double getArea() { return Math.PI * Math.pow(radius, 2); } //return the perimeter of the circle public double getPerimeter() { return 2 * Math.PI * radius; } //return true if the specified point (x, y) is inside this circle public boolean contains(double x, double y) { return Math.sqrt(Math.pow(x - this.x, 2) + Math.pow(y - this.y, 2)) < radius; } //return true if…// Some circle statistics public class DebugFour2 { publicstaticvoidmain(Stringargs[]) { double radius =12.6; System.out.println("Circle statistics"); double area = java.Math.PI * radius * radius; System.out.println("area is " + area); double diameter =2- radius; System.out.println("diameter is + diameter); } }Public classTestMain { public static void main(String [ ] args) { Car myCar1, myCar2; Electric Car myElec1, myElec2; myCar1 = new Car( ); myCar2 = new Car("Ford", 1200, "Green"); myElec1 = new ElectricCar( ); myElec2 = new ElectricCar(15); } }