et’s Play with Numbers!!! Write the ComplexNumber class so that the following code generates the output below. class RealNumber: def __init__(self, r=0): self.__realValue = r def getRealValue(self): return self.__realValue def setRealValue(self, r): self.__realValue = r def __str__(self): return 'RealPart: '+str(self.getRealValue()) cn1 = ComplexNumber() print(cn1) print('---------') cn2 = ComplexNumber(5,7) print(cn2) OUTPUT: RealPart: 1.0 ImaginaryPart: 1.0 -------------------- RealPart: 5.0 ImaginaryPart: 7.0

et’s Play with Numbers!!! Write the ComplexNumber class so that the following code generates the output below. class RealNumber: def init(self, r=0): self.realValue = r def getRealValue(self): return self.realValue def setRealValue(self, r): self.realValue = r def str__(self): return 'RealPart: '+str(self.getRealValue()) cn1 = ComplexNumber() print(cn1) print('---------') cn2 = ComplexNumber(5,7) print(cn2) OUTPUT: RealPart: 1.0 ImaginaryPart: 1.0 -------------------- RealPart: 5.0 ImaginaryPart: 7.0

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter4: More Object Concepts

Section: Chapter Questions

Problem 2PE

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Write the CheckingAccount class so that the following code generates the output below: class Account: def __init__(self, balance): self._balance = balance def getBalance(self): return self._balance print('Number of Checking Accounts: ', CheckingAccount.numberOfAccount) print(CheckingAccount()) print(CheckingAccount(100.00)) print(CheckingAccount(200.00)) print('Number of Checking Accounts: ', CheckingAccount.numberOfAccount) OUTPUT: Number of Checking Accounts: 0 Account Balance: 0.0 Account Balance: 100.00 Account Balance: 200.00 Number of Checking Accounts: 3
Build the ItemToPurchase class with the following specifications: Attributes item_name (string)item_price (int)item_quantity (int)Default constructor Initializes item's name = "none", item's price = 0, item's quantity = 0Methodprint_item_cost() Ex. of print_item_cost() output: Bottled Water 10 @ $1 = $10In the main section of your code, prompt the user for two items and create two objects of the ItemToPurchase class. Ex: Item 1Enter the item name:Chocolate ChipsEnter the item price:3Enter the item quantity:1 Item 2Enter the item name:Bottled WaterEnter the item price:1Enter the item quantity:10 Add the costs of the two items together and output the total cost. Ex: TOTAL COSTChocolate Chips 1 @ $3 = $3Bottled Water 10 @ $1 = $10 Total: $13
Implement the design of the Purchaser and AarongProducts classes so that the following code generates the output below: #Write your code here p1 = Purchaser('Alex Light') print('1.===============================') print(p1) product1 = AarongProducts('Decor', 'Photo-Frame') print('2.===============================') print(product1) print('3.===============================') print(AarongProducts.products) print('4.===============================') AarongProducts.include_products('Souvenirs',['Brass-Flowervase 2170', 'Terracotta-Vase 3500']) print(f'Updated Item List:\n{AarongProducts.products}') print('5.===============================') product2 = AarongProducts('Souvenirs', 'Terracotta-Vase', 2) print(product2) print('6.===============================') p1.create_invoice(product1, product2) print('7.===============================') product3 = AarongProducts('Decor', 'Candles', 5) print(product3) print('8.===============================') product4 = AarongProducts('Souvenirs', 'Brass…
D Create a class Sum with the following fields, constructors and methods:Fields: create two integer fields Constructors:- a no-argument constructor- a constructor with two parameters Methods:- write a getter to return the sum of fields- Create 4 overloaded calculate methods 1. method receives two integer parameters and returns the sum 2. method receives four integer parameters and returns the sum 3. method receives two double parameters and returns the sum 4. method receives two String parameters and returns the sum Create a demo class to test the two constructors, all the methods and display the returned values. You can hard code the parameters values. Make sure the four methods created are toverloaded i.e. same method name for all four.
Write a new class called DistanceFitnessTracker that extends FitnessTracker. DistanceFitnessTracker will represent a fitness tracker able torecord only distance. Here, you will not be asked to convert between distance units(i.e. the default behaviour of the Distance class will be used, namely, kilometres). Distance.java public class Distance {// Enum of distance unitspublic enum DistanceUnit {KILOMETRES,MILES}// Constantsprivate static final double KMS_PER_MILE = 1.609;private static final double MILES_PER_KM = 0.621;// Instance variablesprivate double value;private DistanceUnit distanceUnit;// Constructorspublic Distance(double value) {this.value = value;// Default unit is kmthis.distanceUnit = DistanceUnit.KILOMETRES;} public Distance(double value, DistanceUnit distanceUnit) {this.value = value;this.distanceUnit = distanceUnit;}// Methods: You should remove the comments and complete the method bodies for all the methods below// Think that all these methods are in the class for a…
This program extends the earlier "Online shopping cart" program. (Consider first saving your earlier program). (1) Extend the ItemToPurchase class to contain a new attribute. item_description (string) - Set to "none" in default constructorImplement the following method for the ItemToPurchase class. print_item_description() - Prints item_description attribute for an ItemToPurchase object. Has an ItemToPurchase parameter. Ex. of print_item_description() output: Bottled Water: Deer Park, 12 oz. (2) Build the ShoppingCart class with the following data attributes and related methods. Note: Some can be method stubs (empty methods) initially, to be completed in later steps. Parameterized constructor which takes the customer name and date as parameters Attributescustomer_name (string) - Initialized in default constructor to "none"current_date (string) - Initialized in default constructor to "January 1, 2016"cart_items (list)Methodsadd_item()Adds an item to cart_items list. Has a parameter of…
please code in java..refer the 2 codes BankAccount and AccountTest.. BankAccount source code is given below and AccountTest source code is added in image Question is to add code to be able to lock the account. for example if someone withdraws a certain amount of money the accounts locks, etc /** The BankAccount class simulates a bank account.*/ public class BankAccount{ private double balance; // Account balance /** This constructor sets the starting balance at 0.0. */ public BankAccount() { balance = 0.0; } /** This constructor sets the starting balance to the value passed as an argument. @param startBalance The starting balance. */ public BankAccount(double startBalance) { balance = startBalance; } /** This constructor sets the starting balance to the value in the String argument. @param str The starting balance, as a String. */ public BankAccount(String str) { balance =…
public class BackAccount{public double Balance { set; get; }public void Deposit(double amount){Balance = Balance + amount;} }Transaction FeesTransaction TypeDeposit Withdrawal Check BalanceAmount0.25 % of the deposit amount 0.5 % of the withdrawal amount FreeUsing the code snippet above, complete the bank account functionality by adding Withdraw and CheckBalance methods. In your definition for the Withdraw method, check if the account has sufficient funds before making a withdrawal. Apply transaction fees as per the table above:
can you please answer number 4 for me 1. Create a class called Student, with the following attributes/variables:a. studentName (String)b. studentNumber (int)sc. regYear(long)d. faculty(String)e. department(String)2. Add the following methods in Student:a. accessors and mutators for all variablesb. toString methodi. Formulate your toString so that it only shows studentName,studentNumber and faculty3. Create a class called MyFriends, with the following attributes variables:a. studentArray(Student[])4. Add the following methods in MyFriends:a. fillArrayi. Using scanner ask how many students does the user want to inputii. Capture user input for all of his friends(Of course we are assuming all your friends would be similarUWC students, go ask around and meet new friends, alsopreferably not in the same Computer Science department … ifpossible … only if possible)b. maini. Call the fillArray methodii. Count how many Computer Science studentsiii. If half or more students are Computer Science…
In this exercise, you have to calculate the student's total marks using the concept of Classes Problem Statement# Write a Java class called Student with ● private fields: ○ name(String type) ○ mark1 and mark2 (double type) And methods: ● getMarks(int markNumber), a method which should return mark1 if markNumber equals 1 and mark2 otherwise. ● calcTotal() method should take the two marks entered and return their sum. Also define two constructors: ● A default constructor that takes no parameters and initializes the values to zeros and null. ● A constructor that takes the three variables and sets them as the values of the appropriate fields. Input# Name of the student and the marks obtained in the first and second tests Output# Sum of both marks Sample Input# Student student = new Student("Jack", 60, 70); Sample Output# getMarks(1) => 60 getMarks(2) => 70 calcTotal() => 130.0 Part of solution class Student { // Define private fields here public Student() { // Write…
Use the following code to answer the question public class SpeedTrap {private int speedLimit;/*** Creates a new SpeedTrap with the given* speed limit* * @precondition speedLimit >= 1* @postcondition getSpeedLimit()==speedLimit*/public SpeedTrap(int speedLimit) {if (speedLimit < 1) {throw new IllegalArgumentException("invalid speed limit");}this.speedLimit = speedLimit;}/*** Gets the speed limit* @return the speed limit*/public int getSpeedLimit() {return this.speedLimit;}/*** Checks to see if the given miles-per-hour* is considered speeding.** @precondition mph >= 0* @postcondition none** @returns true if speeding; false otherwise*/public boolean isSpeeding(int mph) {if (mph < 0) {throw new IllegalArgumentException("invalid mph");}return (mph > this.speedLimit);}}Write a JUnit test named testWhenSpeeding that uses a value for mph that is valid and is considered speeding.
Use the following code to answer the question public class SpeedTrap {private int speedLimit;/*** Creates a new SpeedTrap with the given* speed limit* * @precondition speedLimit >= 1* @postcondition getSpeedLimit()==speedLimit*/public SpeedTrap(int speedLimit) {if (speedLimit < 1) {throw new IllegalArgumentException("invalid speed limit");}this.speedLimit = speedLimit;}/*** Gets the speed limit* @return the speed limit*/public int getSpeedLimit() {return this.speedLimit;}/*** Checks to see if the given miles-per-hour* is considered speeding.** @precondition mph >= 0* @postcondition none** @returns true if speeding; false otherwise*/public boolean isSpeeding(int mph) {if (mph < 0) {throw new IllegalArgumentException("invalid mph");}return (mph > this.speedLimit);}}Write a JUnit test for the SpeedTrap constructor named testWhenOneUnderSpeedLimitBoundary