Java程序辅导

Lab lecture exercises – 27 November 2015
(This exercise follows Jon Rowe’s implementation in the first year software workshop.)
In week one we learned to know the conversion between degrees Celsius and Fahren-
heit. See, http://www.cs.bham.ac.uk/internal/courses/java/msc/handouts/1-01/
Conversion.java. Today we want to implement a system that uses a ruler and converts
between the two units by following the model-view-controller schema. To this end, we want
to implement seven different classes:
1. Temperature.java, a class with two field variables of type double to represent the
Fahrenheit and the Celsius degrees of a temperature (with a constructor making use
of the Celsius degrees).
2. TemperatureModel.java that extends Observable.
3. SliderListener.java that implements ChangeListener.
4. CelsiusView that extends JLabel and implements Observer.
5. FahrenheitView that extends JLabel and implements Observer.
6. TemperatureComponent that extends JPanel and specifies the details how the ruler
should look like.
7. TemperatureGUI.java containing the main method calling the GUI.
c© 2015, Manfred Kerber, School of Computer Science, University of Birmingham