StringBuffer和StringBuilder源码解读

StringBuffer和StringBuilder的UML图如下

StringBuffer和StringBuilder的区别

1、线程安全

2、缓冲区

3、性能

StringBuffer和StringBuilder均是继承自AbstractStringBuilder

capacity和length的区别

扩容机制 capacity*2+2

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转载自blog.csdn.net/u010313979/article/details/106904819