PMD 是一個Code檢查器,找出可能之潛在問題。並能與許多IDE整合,提供進一步的建議。 PMD scans Java source code and looks for potential problems like: Possible bugs - empty try/catch/finally/switch statements Dead code - unused local variables, parameters and private methods Suboptimal code - wasteful String/StringBuffer usage Overcomplicated expressions - unnecessary if statements, for loops that could be while loops Duplicate code - copied/pasted code means copied/pasted bugs 同性質 的還有許多,但 PMD 是我用起來最習慣的,與 Eclipse 整合也很好。 像 CheckStyle 就用得不習慣。