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String StringBuffer StringBuilder-奔跑吧爽爽的博客-51CTO博客

 6 years ago
source link: http://blog.51cto.com/13579086/2066694
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1.StringBuffer和StringBuilder是字符串缓冲区，可以对字符串修改，是一个容器2.StringStringBuffer和StringBuilder都被final修饰，不能被继承3.StringBuffer和StringBuilder都没有重写equals(),String重写了4.StringBuffer是线程安全的，StringBuilder是线程不安全的，jdk1.5以后

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