Write an application that allows a user to select a country from a list box that contains at least seven options. After the user makes a selection, display the country’s capital city. Save the file as JCapitals.java.
Write an 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 $200 per 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. Save the file as JInsurance.java.
Search the Internet for information about how to use a JTextArea, its constructors, and its setText() and append() methods. Write an application that allows the user to select options for a dormitory room. Use JCheckBoxes for options such as private room, Internet connection, cable TV connection, microwave, refrigerator, and so on. When the application starts, use a text area to display a message listing the options that are not yet selected. As the user selects and deselects options, add appropriate messages to the text area so it accumulates a running list that reflects the user’s choices. Save the file as JDorm.java.
Modify the JDorm application so that instead of a running list of the user’s choices, the application displays only the current choices. Save the file as JDorm2.java.
Create an application for Paula’s Portraits, a photography studio. The application allows users to compute the price of a photography session. Paula’s base price is $40 for an in-studio photo session with one person. The in-studio fee is $75 for a session with two or more subjects, and $95 for a session with a pet. A $90 fee is added to take photos on location instead of in the studio. Include a set of mutually exclusive check boxes to select the portrait subject and another set for the session location. Include labels as appropriate to explain the application’s functionality. Save the file as JPhotoFrame.java.
