如何将字符数组转换回字符串? [英] How to convert a char array back to a string?

问题描述

我有一个字符数组:

char[] a = {'h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd'};

我目前的解决方案是做

String b = new String(a);

但肯定有更好的方法吗?

But surely there is a better way of doing this?

推荐答案

不，该解决方案绝对正确，而且非常简单.

No, that solution is absolutely correct and very minimal.

但是请注意，这是一种非常不寻常的情况:因为 String 在 Java 中是专门处理的，即使 "foo" 实际上是一个 String>.因此，在普通代码中不需要将 String 拆分为单独的 char 并将它们连接回来.

Note however, that this is a very unusual situation: Because String is handled specially in Java, even "foo" is actually a String. So the need for splitting a String into individual chars and join them back is not required in normal code.

将其与 C/C++ 进行比较，其中 "foo" 您有一组 char 以一侧的零字节和 string 结尾> 另一方面，它们之间的许多转换都是遗留方法.

Compare this to C/C++ where "foo" you have a bundle of chars terminated by a zero byte on one side and string on the other side and many conversions between them due do legacy methods.

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