Code Samples for SE 2811, Hasker's Section

• Week 1 code illustrating the Null Object Pattern
• Sample UML Project that illustrates key arrows:

  

• CountLines.java: code to illustrate reading lines until the end-of-file is reached. A sample run:

          $ java CountLines.java < CountLines.java
          Line count: 42
  

• bee_simulator.zip: JavaFX code illustrating displaying an image and using arrow keys to move it on a panel
  • bee_simulator_with_timer.zip: version of Bee Simulator code that adds a timer; this illustrates using timers in JavaFX programs. Do NOT use this version as the basis for your labs 3 and 4.

• TestReflection.java: code using reflection to bypass private access restriction

• Applying the Decorator pattern to ice cream items

• Code illustrating threads:
  • Count2000.java: failed attempt to add 1000 to 1000
  • dblcounter.zip: JavaFX project showing what happens if you have unprotected counters.

• Code illustrating subject/observer (or publish/subscribe): weather_observer.zip

• Bare bones command pattern: pbook.zip See pbook/PhoneBook.java for instructions running the tests from the command prompt. This version has no interface.

• Full phonebook with GUI: myphonebook.zip
  This version supports adding and removing entries along with undo and redo. ("yap" = "Yet Another Phonebook")

• RMI Example: illustrates using RMI to increment a simple counter remotely.

• TicTacToe RMI Example: illustrates using RMI on a more complex example.

• factory-time.zip: Time/Clock example illustrating the Factory pattern