Java 官方文档

Resource

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Basics

Setup

  • Environment Setup

Syntax

Number

Number Class

Number methods

  • abs()
  • acos()
  • asin()
  • atan()
  • atan2()
  • ceil()
  • compareTo()
  • cos()
  • equals()
  • exp()
  • floor()
  • log()
  • max()
  • min()
  • parseInt()
  • pow()
  • random()
  • rint()
  • round()
  • sin()
  • sqrt()
  • tan()
  • toDegrees()
  • toRadians()
  • toString()
  • valueOf()
  • xxxValue()

Character

Character Class

Character methods

  • isDigit()
  • isLetter()
  • isLowerCase()
  • isUpperCase()
  • isWhitespace()
  • toLowerCase()
  • toUpperCase()

String

String Class

String methods

Basic Classes

Basic Classes

Data Structures

Data structures

  • BitSet
  • Dictionary
  • Enumeration
  • Hashtable
  • Properties
  • Stack
  • Vector

Collection

  • Collection Interface
  • List Interface
  • Map
  • Map.Entry
  • Set
  • SortedMap
  • SortedSet

Object Oriented

Object Oriented Topic

Advanced

Advanced Topic