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最最最常见的Java面试题总结——第二周

 7 years ago
source link: https://juejin.im/post/5b7511ccf265da283e714322
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String和StringBuffer、StringBuilder的区别是什么？String为什么是不可变的？ String和StringBuffer、StringBuilder的区别 可变性 String类中使用字符数组:private&emsp

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