Update README.md

JavaInterviewHub · web-flow · commit eb4e123c0e0c · 2021-03-18T22:00:53.000+08:00
diff --git a/README.md b/README.md
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+* [Java&#38598;&#21512;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md)
+   * [1.&#24120;&#35265;&#30340;&#38598;&#21512;&#26377;&#21738;&#20123;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#1&#24120;&#35265;&#30340;&#38598;&#21512;&#26377;&#21738;&#20123;)
+   * [2.&#24120;&#35265;&#30340;&#38598;&#21512;&#24213;&#23618;&#23454;&#29616;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#2&#24120;&#35265;&#30340;&#38598;&#21512;&#24213;&#23618;&#23454;&#29616;)
+   * [3.HashMap&#19982;HashTable&#30340;&#21306;&#21035;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#3hashmap&#19982;hashtable&#30340;&#21306;&#21035;)
+   * [4.ConcurrentHashMap&#21644;Hashtable&#30340;&#21306;&#21035;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#4concurrenthashmap&#21644;hashtable&#30340;&#21306;&#21035;)
+   * [5.ConcurrentHashMap&#23454;&#29616;&#21407;&#29702;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#5concurrenthashmap&#23454;&#29616;&#21407;&#29702;)
+   * [6.ArrayList &#21644; Vector &#30340;&#21306;&#21035;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#6arraylist-&#21644;-vector-&#30340;&#21306;&#21035;)
+   * [7.ArrayList&#21644;LinkedList&#30340;&#21306;&#21035;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#7arraylist&#21644;linkedlist&#30340;&#21306;&#21035;)
+   * [8.HashMap &#40664;&#35748;&#30340;&#21021;&#22987;&#21270;&#38271;&#24230;&#26159;&#22810;&#23569;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#8hashmap-&#40664;&#35748;&#30340;&#21021;&#22987;&#21270;&#38271;&#24230;&#26159;&#22810;&#23569;)
+   * [9.&#35848;&#35848;&#23545;HashMap &#26500;&#36896;&#26041;&#27861;&#20013;&#21021;&#22987;&#23481;&#37327;&#12289;&#21152;&#36733;&#22240;&#23376;&#30340;&#29702;&#35299;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#9&#35848;&#35848;&#23545;hashmap-&#26500;&#36896;&#26041;&#27861;&#20013;&#21021;&#22987;&#23481;&#37327;&#21152;&#36733;&#22240;&#23376;&#30340;&#29702;&#35299;)
+   * [10.Java&#38598;&#21512;&#26694;&#26550;&#26159;&#20160;&#20040;&#65311;&#35828;&#20986;&#19968;&#20123;&#38598;&#21512;&#26694;&#26550;&#30340;&#20248;&#28857;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#10java&#38598;&#21512;&#26694;&#26550;&#26159;&#20160;&#20040;&#35828;&#20986;&#19968;&#20123;&#38598;&#21512;&#26694;&#26550;&#30340;&#20248;&#28857;)
+   * [11.&#38598;&#21512;&#26694;&#26550;&#20013;&#30340;&#27867;&#22411;&#26377;&#20160;&#20040;&#20248;&#28857;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#11&#38598;&#21512;&#26694;&#26550;&#20013;&#30340;&#27867;&#22411;&#26377;&#20160;&#20040;&#20248;&#28857;)
+   * [12.&#20026;&#20309;Collection&#19981;&#20174;Cloneable&#21644;Serializable&#25509;&#21475;&#32487;&#25215;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#12&#20026;&#20309;collection&#19981;&#20174;cloneable&#21644;serializable&#25509;&#21475;&#32487;&#25215;)
+   * [13.&#20026;&#20309;Map&#25509;&#21475;&#19981;&#32487;&#25215;Collection&#25509;&#21475;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#13&#20026;&#20309;map&#25509;&#21475;&#19981;&#32487;&#25215;collection&#25509;&#21475;)
+   * [14.Iterator&#26159;&#20160;&#20040;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#14iterator&#26159;&#20160;&#20040;)
+   * [15.Enumeration&#21644;Iterator&#25509;&#21475;&#30340;&#21306;&#21035;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#15enumeration&#21644;iterator&#25509;&#21475;&#30340;&#21306;&#21035;)
+   * [16.Iterater&#21644;ListIterator&#20043;&#38388;&#26377;&#20160;&#20040;&#21306;&#21035;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#16iterater&#21644;listiterator&#20043;&#38388;&#26377;&#20160;&#20040;&#21306;&#21035;)
+   * [17.fail-fast&#19982;fail-safe&#26377;&#20160;&#20040;&#21306;&#21035;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#17fail-fast&#19982;fail-safe&#26377;&#20160;&#20040;&#21306;&#21035;)
+   * [18.hashCode()&#21644;equals()&#26041;&#27861;&#26377;&#20309;&#37325;&#35201;&#24615;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#18hashcode&#21644;equals&#26041;&#27861;&#26377;&#20309;&#37325;&#35201;&#24615;)
+   * [19.&#25105;&#20204;&#33021;&#21542;&#20351;&#29992;&#20219;&#20309;&#31867;&#20316;&#20026;Map&#30340;key&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#19&#25105;&#20204;&#33021;&#21542;&#20351;&#29992;&#20219;&#20309;&#31867;&#20316;&#20026;map&#30340;key)
+   * [20.&#22914;&#20309;&#20915;&#23450;&#36873;&#29992;HashMap&#36824;&#26159;TreeMap&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#20&#22914;&#20309;&#20915;&#23450;&#36873;&#29992;hashmap&#36824;&#26159;treemap)
+   * [21.&#21738;&#20123;&#38598;&#21512;&#31867;&#25552;&#20379;&#23545;&#20803;&#32032;&#30340;&#38543;&#26426;&#35775;&#38382;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#21&#21738;&#20123;&#38598;&#21512;&#31867;&#25552;&#20379;&#23545;&#20803;&#32032;&#30340;&#38543;&#26426;&#35775;&#38382;)
+   * [22.BlockingQueue&#26159;&#20160;&#20040;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#22blockingqueue&#26159;&#20160;&#20040;)
+   * [23.&#38431;&#21015;&#21644;&#26632;&#26159;&#20160;&#20040;&#65292;&#21015;&#20986;&#23427;&#20204;&#30340;&#21306;&#21035;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#23&#38431;&#21015;&#21644;&#26632;&#26159;&#20160;&#20040;&#21015;&#20986;&#23427;&#20204;&#30340;&#21306;&#21035;)
+   * [24.Collections&#31867;&#26159;&#20160;&#20040;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#24collections&#31867;&#26159;&#20160;&#20040;)
+   * [25.Comparable&#21644;Comparator&#25509;&#21475;&#26377;&#20309;&#21306;&#21035;&#65311;](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#25comparable&#21644;comparator&#25509;&#21475;&#26377;&#20309;&#21306;&#21035;)
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 +* [Java集合](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md)
 +   * [1.常见的集合有哪些？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#1常见的集合有哪些)
 +   * [2.常见的集合底层实现](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#2常见的集合底层实现)
 +   * [3.HashMap与HashTable的区别？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#3hashmap与hashtable的区别)
 +   * [4.ConcurrentHashMap和Hashtable的区别？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#4concurrenthashmap和hashtable的区别)
 +   * [5.ConcurrentHashMap实现原理](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#5concurrenthashmap实现原理)
 +   * [6.ArrayList 和 Vector 的区别？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#6arraylist-和-vector-的区别)
 +   * [7.ArrayList和LinkedList的区别？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#7arraylist和linkedlist的区别)
 +   * [8.HashMap 默认的初始化长度是多少？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#8hashmap-默认的初始化长度是多少)
 +   * [9.谈谈对HashMap 构造方法中初始容量、加载因子的理解](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#9谈谈对hashmap-构造方法中初始容量加载因子的理解)
 +   * [10.Java集合框架是什么？说出一些集合框架的优点？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#10java集合框架是什么说出一些集合框架的优点)
 +   * [11.集合框架中的泛型有什么优点？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#11集合框架中的泛型有什么优点)
 +   * [12.为何Collection不从Cloneable和Serializable接口继承？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#12为何collection不从cloneable和serializable接口继承)
 +   * [13.为何Map接口不继承Collection接口？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#13为何map接口不继承collection接口)
 +   * [14.Iterator是什么？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#14iterator是什么)
 +   * [15.Enumeration和Iterator接口的区别？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#15enumeration和iterator接口的区别)
 +   * [16.Iterater和ListIterator之间有什么区别？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#16iterater和listiterator之间有什么区别)
 +   * [17.fail-fast与fail-safe有什么区别？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#17fail-fast与fail-safe有什么区别)
 +   * [18.hashCode()和equals()方法有何重要性？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#18hashcode和equals方法有何重要性)
 +   * [19.我们能否使用任何类作为Map的key？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#19我们能否使用任何类作为map的key)
 +   * [20.如何决定选用HashMap还是TreeMap？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#20如何决定选用hashmap还是treemap)
 +   * [21.哪些集合类提供对元素的随机访问？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#21哪些集合类提供对元素的随机访问)
 +   * [22.BlockingQueue是什么？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#22blockingqueue是什么)
 +   * [23.队列和栈是什么，列出它们的区别？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#23队列和栈是什么列出它们的区别)
 +   * [24.Collections类是什么？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#24collections类是什么)
 +   * [25.Comparable和Comparator接口有何区别？](https://github.com/JavaInterviewHub/JavaInterview/blob/main/Java%E9%9B%86%E5%90%88.md#25comparable和comparator接口有何区别)
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