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        1、培訓過程中，如有部分內容理解不透或消化不好，可免費在以后培訓班中重聽；
        2、培訓結束后,授課老師留給學員聯系方式,保障培訓效果,免費提供課后技術支持。
        3、培訓合格學員可享受免費推薦就業機會。

• Basics and performance measurements
  Performance dimensions
  The process of creating efficient software
  Factors affecting performance
  Micro and Macro-Benchmarking
  Profiling
  Use of tools: JConsole, Java Visual VM, JMC (Java Mission Control), MAT (memory analysis)
  Efficient work on files
  IO: streams, buffering, RandomAccessFile
  NIO: channels, memory mapped files
  NIO.2 (introduction): Path, Files
  How to increase serialization performance
  Working with collections and arrays
  Computational complexity - how to choose algorithms
  Recursion, iteration and heuristics
  Performance for sets, lists, queues, maps
  Views and Collections class
  Review of multithreaded collections (java.util.concurrent)
  Arrays and collections for simple types
  JMH - approved microbenchmak framework for Java
  Creating JMH project and benchmarks
  Configuration, running, results
  Concurrent and parameterizable Benchmarks
  Traps and advanced elements
  Class loading
  Class Class, ClassLoader and class loading process
  When to control class loading?
  Delaying class loading and reducing the number of classes
  Reflection and dynamic proxy
  Introduction to modules (Java 9)
  Memory management in Java
  Garbage Collector and object life cycle
  Strong, soft, weak and phantom references
  Why memory leak occurs and what to avoid in Java
  Generations and memory spaces
  Tuning Garbage Collector
  Types of Garbage Collector: Serial, Parallel, Concurrent, G1
  Changes in Java 8 and Java 9
  Java Virtual Machine
  Client and server modes
  Tuning JVM
  Performance changes from version to version
  Introduction to optimization for HTTP (OPTIONAL)
  Problems with server side optimization
  Testing with HTTP: HttpUnit, JWebUnit, Selenium
  Performance measurements for HTTP: Grinder, JMeter
  Additional information about JMeter
  Problems with optimization
  Micro-benchmarking problems
  Premature optimization
  Greed
  Other bad practices