The following class maintains an account balance and returns a special error code. public class Account { private double balance; // returns new balance or -1 if error public double deposit(double amount) { if (amount > 0) balance += amount; else return -1; // Code indicating error return balance; } } Rewrite the class so that it throws appropriate exception instead of returning -1 as an error code. Write test code that attempts to deposit

The following class maintains an account balance and returns a special error code. public class Account { private double balance; // returns new balance or -1 if error public double deposit(double amount) { if (amount > 0) balance += amount; else return -1; // Code indicating error return balance; } } Rewrite the class so that it throws appropriate exception instead of returning -1 as an error code. Write test code that attempts to deposit

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter11: Inheritance And Composition

Section: Chapter Questions

Problem 6PE

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!!!!!!!!!!Below is The following class maintains an account balance and returns aspecial error code.public class Account{private double balance;// returns new balance or -1 if errorpublic double deposit(double amount){if (amount > 0)balance += amount;elsereturn -1; // Code indicating errorreturn balance;}}Rewrite the class so that it throws appropriate exception instead ofreturning -1 as an error code. Write test code that attempts to depositinvalid amounts and catches the exceptions that are thrown/. Cose
public abstract class Shape { public Shape() { } public abstract double area() ; public String who() { return "Shape" ; } } public class Circle extends Shape { private int radius ; public Circle( int r ) { radius = r ; } @Override public double area() { return Math.PI * radius * radius ; } } public class Square extends Shape { private int _sideLength ; public Square( int sideLength ) { /* TODO question 45 */ } @Override public double area() { return _sideLength * _sideLength ; } } Implement the Square constructor, and make sure it throws an exception when the input parameter is not a valid length. The input parameter must be positive to be considered valid.
Modify the attached code: Create a new class called CalculatorWithMod. This class should be a sub class of the base class Calculator. This class should also have an additional method for calculating the modulo. The modulo method should only be seen at the sub class, and not the base class! Include exception handling for instances when dividing by 0 or calculating the modulo with 0. You would need to use throw, try, and catch. The modulo (or "modulus" or "mod") is the remainder after dividing one number by another.Example: 20 mod 3 equals 2Because 20/3 = 6 with a remainder of 2 Refer also to the attached sample outputs:
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
Write a class named StockPrices . The class constructor should accept an array of stock prices as its argument. The class should have a member function that returns the average of the stock prices. If any stock price in the array is negative or greater than 5000, the class should throw an exception. Demonstrate the class in a program. This is a question of c++
In Java, Write a line of code that performs each of the following tasks : (a) Call superclass Employee's toString method from subclass Pieceworker's toString method. (b)Specify that class Pieceworker inherits from class Employee. (c) Call superclass Employee's constructor from subclass Pieceworker's constructor - assume that the superclass constructor receives three strings representing the first name, last name and social security number.
The BankAccount class described below is used to represent a personal savings account with a yearly interest rate, (represented as a percentage, e.g., a 7% rate is represented by .07). The interest is applied monthly, (i.e., at the end of each month 1/12 of the interest is deposited into the account). public class BankAccount { public BankAccount(double rate) public BankAccount(double initBal, double rate) public double getBalance() public double getIntRate() public void setIntRate(double rate) public void deposit(double amount) public void withdraw(double amount) public void addMonthsInterest() private double balance; private double intRate; } Suppose a bank offers to its special customers a new type of savings account, called a “Credit Account”, that allows the customer to withdraw extra money if needed, so that the account balance is allowed to be negative at some times. These accounts award interest at the end of every month, as long as the balance is positive. If the…
ANSWER IN JAVA Standard Output: Enter·side·length·of·square:Side·length·must·be·greater·than·0.↵ Define the class InvalidSideException, which inherits from the Exception class. Also define a Square class, which has one method variable -- an int describing the side length. The constructor of the Square class should take one argument, an int meant to initialize the side length; however, if the argument is not greater than 0, the constructor should throw an InvalidSideError. The Square class should also have a method getArea(), which returns the area of the square.Create a Driver class with a main method to test your classes. Your program should prompt the user to enter a value for the side length, and then create a Square object with that side length. If the side length is valid, the program should print the area of the square. Otherwise, it should catch the InvalidExceptionError, print "Side length must be greater than 0.", and terminate the program.
//Todo write test cases for SimpleCalculator Class // No need to implement the actual Calculator class just write Test cases as per TDD. // you need to just write test cases no mocking // test should cover all methods from calculator and all scenarios, so a minimum of 5 test // 1 for add, 1 for subtract, 1 for multiply, 2 for divide (1 for normal division, 1 for division by 0) // make sure all these test cases fail public class CalculatorTest { //Declare variable here private Calculator calculator; //Add before each here //write test cases here }
JAVA write grading program for a class with the following grading policies. thers a total of 2 quizzes, each graded on the basis of 10 points. theeres is 1 midterm exam and one final exam, each graded on the basis of 100 points. final exam counts for 50% of the grade, the midterm counts for 25%, and the 2 quizzes together count for a total of 25%. (Do not forget to normalize the quiz scores.) letter grade will be given based on the following criterion: 90 – 100 A 80 – 89 B 70 – 79 C 60 – 69 D 0 – 59 E program will read student’s scores from a txf file, save them in an arrayor arrays), process the arrays), print the student’s record, which consists of the name, 2 quiz and 2 exam scores as well along with students avg numscore for the course and final letter rade. please noteAll the scores are integers and a student name consists of no more than 10 characters. justify output file
in C# i need to Write the program BookExceptionDemo for the Peterman Publishing Company. Create a BookException class that is instantiated when a Book’s price exceeds 10 cents per page and whose constructor requires three arguments for title, price, and number of pages. Create an error message that is passed to the Exception class constructor for the Message property when a Book does not meet the price-to-pages ratio. For example, an error message: For Goodnight Moon, ratio is invalid. ...Price is $12.99 for 25 pages. Next, create a Book class that contains fields for title, author, price, and number of pages. Include properties for each field. Throw a BookException if a client program tries to construct a Book object for which the price is more than 10 cents per page. Finally, using the Book class, create an array of five Books. Prompt the user for values for each Book. To handle any exceptions that are thrown because of improper or invalid data entered by the user, set the Book’s…
write a java programme: Vehicle class:First create an abstract Vehicle class that contains code common to all of the vehicles.1. Vehicle class has a color, IDnumber, and a model.2. Throw an exception named “InputNotCorrectException” if the IDnumber is negative.3. The accessor and mutator methods for all three data fields.4. Also include a void wheels() method which is declared abstract. Runnable interface:1.Deaclare an abstract method named HowToRun() which has a return type of void. Car class:Car class is a subclass of Vehicle which implements the Runnable interface.1. Write a class called Car which extends the Vehicle class and implements the Runnable interface.2. Override the equals method in the Object class. Two Car objects are equal if their models are thesame.3. In the Car class override the wheels() method to display “A car has four wheels”.4. A method named toString() that returns a string description for the car.5. Override the HowToRun() method to display “A car runs with…