Besides working for Project Managers who set ridiculously short deadlines the other worst nightmare for a programmers is having to maintain legacy code. At O’Reilly they offer 7 tips on how to improve that legacy code that either you programmed (shame on you) or the person you replaced programmed.

1. Use a Stronger Compiler for Your Code
2. Use a Code Formatter to Reformat Your Code
3. Introduce final All Over Your Code
4. Remove Commented-Out Code
5. Refactor Classes to Remove Anonymous Classes
6. Replace Listeners with Weak Listeners
7. Replace Integer Constants with Constant Objects or Enums

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