如何在Java中初始化字节数组？
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how to initialize byte array in Java?
提问by user1950349
I have a byte array like this: (this is not the actual byte array, I have modified it)
我有一个这样的字节数组：（这不是实际的字节数组，我已经修改了它）
[69, 121, 101, 45, 62, 118, 101, 114, 196, 195, 61, 101, 98]
I want to know how can I initialize this in Java so that I can convert this byte array to String? Below line doesn't work.
我想知道如何在 Java 中初始化它以便我可以将此字节数组转换为字符串？下面的行不起作用。
// this doesn't work
byte[] bytes = [69, 121, 101, 45, 62, 118, 101, 114, 196, 195, 61, 101, 98];
// now convert to string
String data = new String(bytes, StandardCharsets.UTF_8);
采纳答案by Suresh Atta
This should work
这应该工作
byte[] bytes = {69, 121, 101, 45, 62, 118, 101, 114, (byte) 196, (byte) 195, 61, 101, 98};
Bytecan hold upto -128 to 127 only. Some of the values are exceeding the limit of a byte value. So you need to cast them to byte.
Byte最多只能容纳 -128 到 127。某些值超出了字节值的限制。所以你需要将它们转换为字节。
