java 如何在java中连接两个char数组？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/17060992/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to concat two char arrays in java?
提问by user2477501
How to concatenate two char arrays in java ?
如何在java中连接两个char数组？
char info[]=new char[10];
char data[]=new char[10];
char result[]=new char[40];
I need to concatenate infoand data, and store the concatenation in result:
我需要连接info和data，并将连接存储在result：
result=info+data;
result=info+data;
How to do this?
这个怎么做？
回答by MadProgrammer
It depends I guess. The simpler approach would be just to convert the chararrays to a Stringand concaternate the Strings.
这取决于我猜。更简单的方法是将char数组转换为 aString并连接Strings。
A better approach would be to use StringBuilder
更好的方法是使用 StringBuilder
char info[] = new char[10];
char data[] = new char[10];
// Assuming you've filled the char arrays...
StringBuilder sb = new StringBuilder(64);
sb.append(info);
sb.append(data);
char result[] = sb.toString().toCharArray();
回答by Evgeniy Dorofeev
try this
试试这个
char result[] = new char[info.length + data.length];
System.arraycopy(info, 0, result, 0, info.length);
System.arraycopy(data, 0, result, info.length, data.length);
回答by Developer
Just found one-line solution from the old Apache Commons Lang library: ArrayUtils addAll()
刚刚从旧的 Apache Commons Lang 库中找到了一行解决方案：ArrayUtils addAll()
