Chapter 11, Slim code:
  Quadratic formula
  Fibonacci numbers
  Exponent-of-2-in
  Recursion example
  Rising powers

Chapter 12, Memoized and Dynamic programming code
  Count-combos code
  Stirling numbers

Chapter  15, Object-oriented code code
  Compu-duds

Miscellaneous Code
  Queue.java
  Stack.java
  Vector -sort!