(Lesson 1 (Function Overview - Highlighting the Importance of Functions by Comparison of Two Practical Online Projects) Lesson 2 (Function Overview - Important Points of Amudar's Law Management Functions) Lesson 3 (Design Optimization - Use of Patterns in Practical Development 01) Lesson 4 (Design Optimization - Use of Patterns in Practical Development 02 - Core of Delayed Loading) Lesson 5 (Design Optimization - Use of Patterns in Practical Development 03 - Dynamic Interceptors) Lesson 6 (Design Optimization -- Mode Used in Practical Development 04 -- Based on Dynamics<Final Practical Development) Lesson 7 (Design Optimization -- Mode Used in Practical Development 05 -- Based on Enjoyment Mode to Improve Functions) Lesson 8 (Design Optimization -- Mode Used in Practical Development 06 -- Based on Decoration Mode to Improve Functions) Lesson 9 (Design Optimization -- Mode Used in Practical Development 07 -- Based on Observer Mode to Improve Functions) Lesson 10 (Design Optimization -- Mode Use in Practical Development 08 -- Buffer Component Improvement Function) Lesson 11 (Design Optimization -- Mode Use in Practical Development 09 -- Cache Component Improvement Function) Lesson 12 (Design Optimization -- Cache in Practical Development) Lesson 13 (Design Optimization -- Space Change at All Times and Space Change at All Times) Lesson 14 (Program Optimization -- Preventing String Memory Leakage)............. Lesson 31 (Parallel Program Optimization -- End of Mode and Use of Thread Pool to Improve Efficiency) Lesson 32 (Parallel Program Optimization -- Synchronization and ThreadLocal Improvement Functions) Lesson 33 (JVM Tuning -- Adjust Xss to Increase Stack Size))