JavaCodeLearn

JavaCodeLearn

Learn more in-depth about some basic Java classes and methods, and read it slowly. Anyway, this is time-consuming and brain-consuming. . . .

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Project environment

IDE : IDEA 2017.1.3
JDK :

• HotSpot(TM) 64-Bit JDK1.6
• HotSpot(TM) 64-Bit JDK1.7
• HotSpot(TM) 64-Bit JDK1.8
• OpenJDK 64-Bit Server VM (build 25.131-b11, mixed mode) OpenJDK1.8

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Table of contents

Java source code learning

• java.lang
  • String 【Updated on 2017-6-21】
  • StringBuilder 【Updated on 2017-7-15】
  • StringBuffer 【Updated on 2017-7-15】
  • Integer 【Updated on 2017-6-24】
  • Byte, Short, Long, Boolean, Character, Float, Double packaging types are not much different
  • Enum 【2017-7-2 Update】
  • ThreadLocal(not read)
  • ClassLoader (not read)
• java.math
  • BigDecimal(not read)
• java.util
  • ArrayList【Updated on 2017-7-27】
  • LinkedList【Updated on 2017-7-28】
  • Simple performance tests of LinkedList and ArrayList [Updated on 2017-8-10]
  • HashMap (not read)
  • TreeMap (not read)
  • LinkedHashMap (not read)
  • HashSet(not read)
  • HashSet(not read)
  • TreeSet(not read)
• java.net
  • URLClassLoader (not read)