1. GUI Applications ButtonGroup and JRadioButton

2. Contents A.Problem: The Metric Converter Application B.Solution C.Exercise: Moving all calculations into a separate class

3. A. Problem: The Metric Converter App Develop a GUI that allows the user to enter a distance in kilometers, and then click on radio buttons to see that distance converted to miles, feet, or inches The conversion formulas are Miles = Kilometers  0.6214 Feet = Kilometers  3281.0 Inches = Kilometers  39370.0

5. B. Solution 1.Developing the View 2.Developing test cases 3.Implementing event handlers for the radio buttons

6. 1. Developing the View Project name: Metric Converter Class name: MetricConverterView Package: metricconverter Frame title: Metric Converter GUI components –The Km panel 1 Label 1 Text field –The button panel 1 Button group 3 radio buttons

8. 2. Developing test cases 2 kilometers = 1.2428 miles = 6562.0 feet = 78740.0 inches

9. 3. Implementing event handlers for the radio buttons

10. C. Exercise: Moving all calculations into a separate class

11. The View & Controller

12. The Model

13. References 1.GUI Building in NetBeans IDE 5.5. http://testwww.netbeans.org/kb/55/quicks tart-gui.html http://testwww.netbeans.org/kb/55/quicks tart-gui.html 2.Starting Out With Java 5 from control structures to objects. Tony Gaddis