7. Long-Distance CallsA long-distance provider charges the following rates for telephone calls: Rate Category Rate per MinuteDaytime (6:00 a.m. through 5:59 p.m.) $0.07Evening (6:00 p.m. through 11:59 p.m.) $0.12Off-Peak (midnight through 5:59 a.m.) $0.05Write a GUI application that allows the user to select a rate category (from a set of radio buttons), and enter the number of minutes of the call into an Entry widget. An info dialog box should display the charge for the call.

7. Long-Distance CallsA long-distance provider charges the following rates for telephone calls: Rate Category Rate per MinuteDaytime (6:00 a.m. through 5:59 p.m.) $0.07Evening (6:00 p.m. through 11:59 p.m.) $0.12Off-Peak (midnight through 5:59 a.m.) $0.05Write a GUI application that allows the user to select a rate category (from a set of radio buttons), and enter the number of minutes of the call into an Entry widget. An info dialog box should display the charge for the call.

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter8: Arrays

Section: Chapter Questions

Problem 2GZ

See similar textbooks

Similar questions

For each of the following exercises, you may choose to write a console-based or GUI application, or both. Write a program for The Carefree Resort named ResortPrices that prompts the user to enter the number of days for a resort stay. Then display the price per night and the total price. Nightly rates are $200 for one or two nights; $180 for three or four nights; $160 for five, six, or seven nights; and $145 for eight nights or more.
In Chapter 2, you created an interactive application named GreenvilleRevenue, and in Chapter 3 you created a GUI version of the application named GreenvilleRevenueGUI. The programs prompt a user for the number of contestants entered in this years and last years Greenville Idol competition, and then they display the revenue expected for this years competition if each contestant pays a $25 entrance fee. The programs also display a statement that compares the number of contestants each year. Now, replace that statement with one of the following messages: If the competition has more than twice as many contestants as last year, display The competition is more than twice as big this year! If the competition is bigger than last years but not more than twice as big, display The competition is bigger than ever! If the competition is smaller than last years, display, A tighter race this year! Come out and cast your vote!
In Chapter 2, you created an interactive application named MarshallsRevenue, and in Chapter 3 you created a GUI version of the application named MarshallsRevenueGUI. The programs prompt a user for the number of interior and exterior murals scheduled to be painted during the next month by Marshalls Murals. Next, the programs compute the expected revenue for each type of mural when interior murals cost $500 each and exterior murals cost $750 each. The applications also display the total expected revenue and a statement that indicates whether more interior murals are scheduled than exterior ones. Now, modify one or both of the applications to accept a numeric value for the month being scheduled and to modify the pricing as follows: Because of uncertain weather conditions, exterior murals cannot be painted in December through February, so change the number of exterior murals to 0 for those months. Marshall prefers to paint exterior murals in April, May, September, and October. To encourage business, he charges only $699 for an exterior mural during those months. Murals in other months continue to cost $750. Marshall prefers to paint interior murals in July and August, so he charges only 9450 for an interior mural during those months. Murals in other months continue to cost $500.
Account numbers sometimes contain a check digit that is the result of a mathematical calculation. The inclusion of the digit in an account number helps ascertain whether the number is a valid one. Write an application named CheckDigit that asks a user to enter a four-digit account number and determines whether it is a valid number. The number is valid if the fourth digit is the remainder when the number represented by the first three digits of the four-digit number is divided by 7. For example, 7770 is valid, because 0 is the remainder when 777 is divided by 7. The next problems rely on the generation of a random number. You can create a random number that is at least mi n but less than max using the following statements: Random ranNumberCenerator = new Random(); int randomNumber; randomNumber = ranNumberGenerator .Next(min, max);
In Chapter 2, you created a program for Marshalls Murals that prompts a user for the number of interior and exterior murals scheduled to be painted during the next month. The program computes the expected revenue for each type of mural when interior murals cost $500 each and exterior murals cost $750 each. The application should display, by mural type, the number of murals ordered, the cost for each type, and a subtotal. The application also displays the total expected revenue and a statement that indicates whether more interior murals are scheduled than exterior ones. Now create an interactive GUI program named MarshallsRevenueGUI that performs all the same tasks.
The Donut Shoppe sells four varieties of doughnuts: Glazed (1.05), Sugar (1.05), Chocolate (1.25), and Filled (1.50). It also sells regular coffee (1.50) and cappuccino (2.75). The store manager wants you to create an application that displays a customers subtotal, 6% sales tax, and total due. Create a Windows Forms application. Use the following names for the project and solution, respectively: Donut Project and Donut Solution. Save the application in the VB2017\Chap06 folder. Create the interface shown in Figure 6-57. When coding the application, use one independent Sub procedure to determine the subtotal, which is the total cost without the sales tax. Use a function to determine the sales tax. Use an event-handling Sub procedure to clear the output. Save the solution and then start and test the application.
The purpose of this exercise is to demonstrate the importance of testing an application thoroughly. Open the FixIt Solution.sln file contained in the VB2017\Chap04\FixIt Solution folder. The application displays a shipping charge that is based on the total price entered by the user, as shown in Figure 4-64. Start the application and then test it by clicking the Display shipping button. Notice that the Shipping charge box contains $13, which is not correct. Now, test the application using the following total prices: 100, 501, 1500, 500.75, 30, 1000.33, and 2000. Here too, notice that the application does not always display the correct shipping charge. (More specifically, the shipping charge for two of the seven total prices is incorrect.) Open the Code Editor window and correct the errors in the code. Save the solution and then start and test the application.
Create a lottery game application named Lottery. Generate three random numbers, each between 1 and 4. Allow the user to guess three numbers. Compare each of the users guesses to the three random numbers, and display a message that includes the users guess, the randomly determined three-digit number, and the amount of money the user has won as follows: Â Make certain that your application accommodates repeating digits. For example, if a user guesses 1, 2, and 3, and the randomly generated digits are 1, 1, and 1, do not give the user credit for three correct guesses-just one.
Danielle, Edward, and Francis are three salespeople at Holiday Homes. Write an application named HomeSales that prompts the user for a salesperson initial (D, E, or F). Either uppercase or lowercase initials are valid. While the user does not type Z, continue by prompting for the amount of a sale. Issue an error message for any invalid initials entered. Keep a running total of the amounts sold by each salesperson. After the user types Z or z for an initial, display each salespersons total, a grand total for all sales, and the name of the salesperson with the highest total.
Write a GUI program named TestsInteractiveGUI that allows a user to enter scores for five tests he has taken. Display the average of the test scores to two decimal places.
_____________ are controls through which a user can enter input data in a GUI application. a. Labels b. Tags c. Tickets d. TextBoxes
After you have dragged a Button onto a Form in the IDE, you can double-click it to __________ delete it view its properties create a method that executes when a user clicks the Button increase its size