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77## 目录
88
9- * ** Java学习很简单**
10- * [字符串和数组](simple-java/string-and-array)
11- * [常用的方法](simple-java/common-methods)
12- * [类和接口](simple-java/classes-and-interfaces)
13- * [集合](simple-java/collections)
14- * [范型](simple-java/generics)
15- * [异常](simple-java/exceptions)
16- * [并发](simple-java/concurrency)
17- * [流 / 数据库](simple-java/io-and-database)
18- * [编译器和JVM](simple-java/compiler-and-jvm)
19- * [反射教程](simple-java/reflection-tutorial.md)
20-
21- * ** 热门话题**
22- * [Java开发的10个错误]()
23- * [使用数组的10个技巧]()
24- * [字符串的10个问题]()
25- * [正则表达式的10个问题]()
26- * [异常的10个问题]()
27- * [集合的10个问题]()
28- * [Map的9个问题]()
29- * [最广泛使用的Java库]()
30- * [为高级开发者推荐的10本书]()
31- * [10个高质量Java博客]()
32- * [Java面试的算法Top10]()
33- * [8张图理解Java]()
34- * [最长使用的前100个Java类]()
35-
36- * ** 流行库／框架／工具**
37- * [什么是框架?]()
38- * [Sevlet容器和Tomcat是什么?]()
39- * [什么是面向切面编程？]()
40- * [库和框架]()
41- * [Spring]()
42- * [使用Spring开源框架]()
43- * [如何操作CVS?]()
44- * [为什么我们要进行测试?]()
45- * [jar文件转换为exe]()
46-
479* ** 开源组件实现**
4810 * [MVC框架实现篇](mvc/index.md)
4911 * [IOC容器实现篇](ioc/index.md)
Original file line number Diff line number Diff line change 1- # 字符串和数组
1+ # 字符串和数组
2+
3+ 1 . [ String的不可变是什么？] ( diagram-to-show-java-strings-immutability.md )
4+ 2 . [ substring()如何工作？] ( the-substring-method-in-jdk-6-and-jdk-7.md )
5+ 3 . [ 为什么String是不可变的？] ( )
6+ 4 . [ 使用""和构造函数创建字符串] ( )
7+ 5 . [ String是引用传递吗？] ( )
8+ 6 . [ length 和 length()] ( )
9+ 7 . [ 如何检查数组是否有效包含一个值？] ( )
10+ 8 . [ ] ( )
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