The number 9 is delivered to the KeyPress event's ______________parameter when the user enters it in a text field.
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The number 9 is delivered to the KeyPress event's ______________parameter when the user enters it in a text field.
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- Access keys are assigned in a control’s __________property. a. Access b. Caption c. Key d. TextThe 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.When you run an application, the application’s form is loaded into memory and an event known as the __________ event takes place. a. Startup b. Begin c. Load d. Initialize
- Write an application that handles a student report card. The application shall save the marks of computer science, math and English. Each subject has a total of 50 marks. If a student obtains at least 75/150 marks, an event will trigger and show a congratulation message on passing the exam. Otherwise, it will display an “F” grade.How do you trigger a PrintDocument control’s PrintPage event?3. Solar Panel InstallationThe Megawatt solar panel company installs solar panels on home rooftops. The base installation charge of $2,000 includes two panels. The charge for each additional panel is $300. The normal waiting time for installation is two weeks, but customers can pay an express charge of 5% of the total cost to reduce this time. Create an application that collects the required information from the user and calculates the charges for the installation.The user should input the following information: first name, last name, phone, number of panels, deposit amount, and a check box for the express installation option. When the user clicks a button to view the charges, display a group box containing the following information: base installation charge, cost of installing additional panels, total installation cost, deposit amount, and balance due.Error checking should include the following criteria:• The name and phone fields cannot be blank• The number of panels must be an…
- Java Programming Joyce Farrell 9th edition Chapter 15-8 Write a JavaFX application that allows the user to choose insurance options. Use a ToggleGroup to allow the user to select only one of two insurance types—HMO (health maintenance organization) or PPO (preferred provider organization). Use CheckBoxes for dental insurance and vision insurance options; the user can select one option, both options, or neither option. As the user selects each option, display its name and price in a TextField; the HMO costs $200 per month, the PPO costs $600 per month, the dental coverage adds $75 per month, and the vision care adds $20 per month.The preprocessor removes the _______ from the source code. comments header files both comments and header files none of the mentionedCreate 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
- Create an application that lets the user enter his or her weight (in pounds) and height (in inches). The application should display the user’s body mass index (BMI). The BMI is often used to determine whether a person is overweight or underweight for his or her height. A person’s BMI is calculated with the following formula: BMI = weight × 703 ÷ height2Java Programming: Finish the JInsurance application that allows the user to choose insurance options in JCheckBoxes. Use a ButtonGroup to allow the user to select only one of two insurance types—HMO (health maintenance organization) or PPO (preferred provider organization). Use regular (single) JCheckBoxes for dental insurance and vision insurance options; the user can select one option, both options, or neither option. As the user selects each option, display its name and price in a text field; the HMO costs $200per month, the PPO costs $600 per month, the dental coverage adds $75 per month, and the vision care adds $20 per month. When a user deselects an item, make the text field blank. Initial Code: import java.awt.*; import javax.swing.*; import java.awt.event.*; public class JInsurance extends JFrame implements ItemListener { FlowLayout flow = new FlowLayout(); ButtonGroup insGrp = new ButtonGroup(); JCheckBox hmo = new JCheckBox("HMO", false); JCheckBox ppo = new…Kinetic Energy In physics, an object that is in motion is said to have kinetic energy. The following formula can be used to determine a moving object’s kinetic energy: KE =1/2mv2 In the formula KE is the kinetic energy, m is the object’s mass in kilograms, and v is the object’s velocity in meters per second. Create an application that allows the user to enter an object’s mass and velocity and then displays the object’s kinetic energy. The application should have a method named KineticEnergy that accepts an object’s mass (in kilograms) and velocity (in meters per second) as arguments. The method should return the amount of kinetic energy that the object has.