先附源码:package java.util;import java.io.*;/** * This class implements a hash table, which maps keys to values. Any * non-null object can be used as a ke
As of the Java 2 platform v1.2, this class was retrofitted to implement theMapinterface, making it a member of theJava Collections Framework. Unlike the new collection implementations,Hashtableis synchronized. I
V>, Cloneable, java.io.Serializable {/**继承关系是继承Dictionary类实现Map接口,里面的方法几乎都是加了synchronized修饰符,因此时线程安全的**//*** The hash table data.*/privatetransientEntry<K,V>[] table;/**底层实现依然是Entry[]数组,与HashMap一致**//*** The total number of entries in the...
Java Collections Framework. Unlike the new collection implementations, Hashtable is synchronized. If a thread-safe implementation is not needed, it is recommended to use HashMap in place of Hashtable. If a thread-safe highly-concurrent implementation is desired, then it is recommended to use java...
Hash table based implementation of theMapinterface. This implementation provides all of the optional map operations, and permitsnullvalues and thenullkey. (TheHashMapclass is roughly equivalent toHashtable, except that it is unsynchronized and permits nulls.) This class makes no guarantees as to th...
Hash tableandlinked listimplementation of the Map interface, with predictable iteration order. This implementation differs from HashMap in that it maintains adoubly-linked listrunning through all of its entries. This linked list defines the iteration ordering, which is normally the order in which key...
在Java中,HashMap是一种常用的数据结构,用于存储键值对。它的put方法是最常用的操作之一,本篇博客将深入探讨HashMap的put方法,逐步分解每个步骤,以便更好地理解数据的添加过程。 1. 确定哈希桶位置 在HashMap中,元素是通过哈希函数计算得到的哈希码(hash code)来确定存储位置的。put方法首先会根据键的哈希码计算出...
Hash table based implementation of the Map interface, with <em>weak keys</em>. C# 複製 [Android.Runtime.Register("java/util/WeakHashMap", DoNotGenerateAcw=true)] [Java.Interop.JavaTypeParameters(new System.String[] { "K", "V" })] public class WeakHashMap : Java.Util.AbstractMap, ...
Hash table based implementation of the Map interface, with <em>weak keys</em>.C# 复制 [Android.Runtime.Register("java/util/WeakHashMap", DoNotGenerateAcw=true)] [Java.Interop.JavaTypeParameters(new System.String[] { "K", "V" })] public class WeakHashMap : Java.Util.AbstractMap, I...
Java.Util Assembly: Mono.Android.dll Hash table based implementation of theMapinterface. C#复制 [Android.Runtime.Register("java/util/HashMap", DoNotGenerateAcw=true)] [Java.Interop.JavaTypeParameters(new System.String[] {"K","V"})]publicclassHashMap:Java.Util.AbstractMap,IDisposable,Java.Inte...