TeachJava!

The Java Design Recipe

1. Define the data.
   • Determine what forms of data will the program process?
   • Write precise definitions for each such form of data.
   • Implement these definitions as classes. Include constructors, definitions of appropriate toString methods.
   • Define examples of each form of data in the main() method of the corresponding class; for mixed include representatives for each different form
   • Use these examples to test your constructors and toString() methods
   
   
2. For each program operation, determine the form of data processed by the operation. Include a method for the operation in the class(es) defining that form of data.
   
   
3. For each such method, write a contract specifying what the operation requires and what it produces.
   
   
4. For each program operation, give a collection of examples specifying how you expect that operation to behave. Write these examples as test cases in the main method of the class containing the operation.
   
   
5. For each program operation select an appropriate template, recognizing that self references in the class of the method suggest that recursive delegation is appropriate.
   
   
6. Test each method using the the examples from step 4 and additional examples suggested by issues that arose during coding.