java基础类

Class 类

• java.util.Arrays
• java.util.Random
• java.io.File
• java.util.Stack
  • not recommended. Double-ended queue is better.
• java.lang.StringBuilder
• java.util.LinkedList
• java.util.Collections
  • simple static method algorithms that operate on collections.
• java.util.PriorityQueue
  • implements java.util.AbstractQueue interface

Interface 接口

• java.lang.Comparable
• java.lang.Cloneable
• java.util.Queue
• java.util.Deque
  • Queue & Deque support two styles for most operations, which vary in the way that they treat exceptional cases.
• java.util.List
• java.util.Iterator
• java.lang.Iterable
• java.util.ListIterator
• java.util.Map
  • ambiguity in an application for which null is allowed as a natural value associated with a key k.
• java.util.Set