The Item class contains a Public method named GetDiscount. The method is a function. An application instantiates an Item object and assigns it to a variable named cellPhone. Which of the following can be used by the application to invoke the GetDiscount method? a. dblDiscount = Item.GetDiscount b. dblDiscount = cellPhone.GetDiscount c. dblDiscount = GetDiscount.cellPhone d. cellPhone.GetDiscount

The Item class contains a Public method named GetDiscount. The method is a function. An application instantiates an Item object and assigns it to a variable named cellPhone. Which of the following can be used by the application to invoke the GetDiscount method? a. dblDiscount = Item.GetDiscount b. dblDiscount = cellPhone.GetDiscount c. dblDiscount = GetDiscount.cellPhone d. cellPhone.GetDiscount

Programming with Microsoft Visual Basic 2017

8th Edition

ISBN:9781337102124

Author:Diane Zak

Publisher:Diane Zak

Chapter10: Classes And Objects

Section: Chapter Questions

Problem 4RQ

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In this exercise, you modify the Grade Calculator application from this chapter’s Apply lesson. Use Windows to make a copy of the Grade Solution folder. Rename the copy Grade Solution-Intermediate. Open the Grade Solution.sln file contained in the Grade Solution-Intermediate folder. Open the CourseGrade.vb file. The DetermineGrade method should accept an integer that represents the total number of points that can be earned in the course. (Currently, the total number of points is 200: 100 points per test.) For an A grade, the student must earn at least 90% of the total points. For a B, C, and D grade, the student must earn at least 80%, 70%, and 60%, respectively. If the student earns less than 60% of the total points, the grade is F. Make the appropriate modifications to the DetermineGrade method and then save the solution. Unlock the controls on the form. Add a label control and a text box to the form. Change the label control’s Text property to “&Maximum points:” (without the quotation marks). Change the text box’s name to txtMax. Lock the controls and then reset the tab order. Open the form’s Code Editor window. The txtMax control should accept only numbers and the Backspace key. Code the appropriate procedure. The grade should be cleared when the user makes a change to the contents of the txtMax control. Code the appropriate procedure. Modify the frmMain_Load procedure so that each list box displays numbers from 0 through 200. Locate the btnDisplay_Click procedure. If the txtMax control does not contain a value, display an appropriate message. The maximum number allowed in the txtMax control should be 400; if the control contains a number that is more than 400, display an appropriate message. The statement that calculates the grade should pass the maximum number of points to the studentGrade object’s DetermineGrade method. Make the necessary modifications to the procedure. Save the solution and then start and test the application.
The Inventory class contains a Private variable named strId. The variable is associated with the Public ItemId property. An application instantiates an Inventory object and assigns it to a variable named onHand. Which of the following can be used by the application to assign the string "XG45 to the strId variable? a. onHand.ItemId = "XG45" b. ItemId.strId = "XG45" c. onHand.strId = "XG45" d. ItemId.strId = "XG45"
The below form will represent the main form from which the user will navigate to the other forms. Meaning each button should be linked to the appropriate form. E.g. If button Manage Addresses is clicked the form managed addresses should be displayed. The Exit button should successfully terminate the program. Create a void method for each button and name them as follow: LinkToAddresses (), LinkToCustomers (), LinkToDrivers (), LinkToStatus (), and LinkToFreight (). The methods should be called under the appropriate button. For the exit button create a void method named AppExit () this should terminate the program.
An application instantiates an Animal object and assigns it to the cat variable. Which of the following stores the value returned by the Animal class’s GetName method in the strName variable?a. strName = Animal.GetNameb. strName = cat.GetNamec. strName = Animal.GetName.catd. none of the above
The Item class contains a Private variable named _dblCost. The variable is associated with the Public Cost property. An application instantiates an Item object and assigns it to a variable named phone. Which of the following can be used by the application to assign the number 150.65 to the _dblCost variable?a. phone.Cost = 150.65b. item.Cost = 150.65c. phone._dblCost = 150.65d. item._dblCost = 150.65
The Inventory class contains a Private variable named strId. The variable is associated with the Public ItemId property. An application instantiates an Inventory object and assigns it to a variable named onHand. Which of the following can be used by the application to assign the string “XG45” to the strId variable? a. onHand.ItemId = "XG45" b. ItemId.strId = "XG45" c. onHand.strId = "XG45" d. ItemId.strId = "XG45"
Retail Price Calculator Create an application that lets the user enter an item's wholesale cost and its markup percentage. It should then display the items retail price. For example: If an item's wholesale cost is $5.00 and its markup percentage is 100 percent, then the item's retail price is $10. If an item's wholesale cost is $5.00 and its markup percentage is 50 percent, then the item's retail price is $7.50. The program should have a method named CalculateRetail that receives the wholesale cost and the markup percentage as arguments and returns the retail price of the item. In addition, there should be the name of the Wholesale Company displayed (be creative). If the cost is over $500, display a $20 discount on the retail price. For example: If an item's wholesale cost is $600.00 and its markup percentage is 100 percent, then the item's retail price is $1,180. ( Markup = $600 * 100% = 600 Retail Price = $600 + $600 - $20 (wholesale cost + markup - discount)
Retail Price Calculator Create an application that lets the user enter an item’s wholesale cost and its markup percentage. It should then display the item’s retail price. For example: • If an item’s wholesale cost is $5.00 and its markup percentage is 100 percent, then the item’s retail price is $10.00. • If an item’s wholesale cost is $5.00 and its markup percentage is 50 percent, then the item’s retail price is $7.50. The program should have a method named CalculateRetail that receives the wholesale cost and the markup percentage as arguments and returns the retail price of the item.
Create an application named Tables that computes the price of a table and chairs and whose Main() method calls the following methods: A method to accept the number of chairs to go with the table as input from the keyboard. This method returns the number of chairs to the Main() method. A method to accept as input and return the type of wood: p for pine, m for maple, and o or oak (use a loop to ensure only one of these letters is entered). A method that accepts the number of chairs and wood type, and calculates the total cost of the desk based on the prices below. This method returns the total cost to the Main() method. Pine tables are $250. Maple tables are $300. All other wood types are $350. There will be an additional cost of $50 per chair. A minimum of 2 chair must be ordered (use a loop to ensure a value of 2 or more is entered.) A final method to display all the details and the final price. The image below shows a sample run of the program.
The dealership sells different types of vehicles: cars and trucks. All vehicles have a make, model, and year. However, a truck has an additional attribute - maximum load capacity (in pounds). Create a class named Vehicle with the following attributes: make, model, and year. Include the following methods: display_info(): This method should print all these details in a formatted string. get_age(): This method should calculate and return the age of the vehicle based on the current year. Tip: You will need to import functionality from the datetime module to do this. Create a class named Truck that inherits from the Vehicle class. This class should have an additional attribute, max_load, which represents the maximum load capacity of the truck. Include the following methods: display_info(): This method should override the method from Vehicle, and when it's called, it should display the truck's make, model, year, and maximum load capacity. can_carry(weight): This method should take a…
Name Formatter Create an application that lets the user enter the following pieces of data: • The user’s first name • The user’s middle name • The user’s last name • The user’s preferred title (Mr., Mrs., Ms., Dr., etc.) Assume the user has entered the following data: • First name: Kelly • Middle name: Jane • Last name: Smith • Title: Ms. The application should have buttons that display the user’s name formatted in the following ways: Ms. Kelly Jane Smith Kelly Jane Smith Kelly Smith Smith, Kelly Jane, Ms. Smith, Kelly Jane Smith, Kelly
java code Fields and methods given Book Fields String title String author int copies Methods Book(String title,String author,int copies) Book() getTitle()String setTitle(String title) getCopies()int setCopies(int copies) toString Question create a method called destroyCopy which will decrement the copies field create a method called newCopy which will increment the copies field create method called upSize which will receive through a number representing the percentage in which the library is going to expand,this method should then return the number of copies that need to be purchased to adhire to the upsizing. put a comment in the line above these three methods destroCopy,newCopy and upsize.The comment should read Unused method.