[51, -42, 119, -85, -64, 126, 22, 127, -72, 72, 48, -66, -18, 45, 99, -119]
This is the BytesArray that I want to print in String. When I searched on the internet, I found that
String(Bytes, Charsets.UTF_8)
would convert it to String. However, I get �؉���Q�t, and doesn't seem to be converted in right way. Why is it?
I want it to be String in Alphabet characters and numbers
Firstly, you are specifying an array of signed bytes (indicated by negative numbers):
51, -42, 119, -85, -64, 126, 22, 127, -72, 72, 48, -66, -18, 45, 99, -119
Let's take a look at what this would hypothetically look like if it were unsigned (I used this tool for the conversion):
51, 214, 119, 171, 192, 126, 22, 127, 184, 72, 48, 190, 238, 45, 99, 137
Assuming by "Alphabet characters and numbers", you mean the English alphabet, then asciitable will help you identify each character's decimal value, but as a rough guide:
Consider the following code sample:
/**
* You can edit, run, and share this code.
* play.kotlinlang.org
*/
fun main() {
val bytes = byteArrayOf(51, -42, 119, -85, -64, 126, 22, 127, -72, 72, 48, -66, -18, 45, 99, -119)
val string = bytes.toString(Charsets.US_ASCII)
println(string)
}
As you can see, some of the values in the unsigned array fall outside of the range for English alphabetic characters and numbers, which is why you end up with a string, something like this "3�w��~�H0��-c�" depending on the charset you choose.
For reference:
| Charset | Result |
|---|---|
| Charsets.US_ASCII | 3�w��~�H0��-c� |
| Charsets.UTF_8 | 3�w��~�H0��-c� |
| Charsets.UTF_16 | ㏖瞫쁾ᙿ롈ゾ掉 |
| Charsets.UTF_32 | ���� |
| Charsets.ISO_8859_1 | 3Öw«À~¸H0¾î-c |
So, it really depends on exactly which encoding the array is using, and exactly what it is you're expecting the resulting string to be.
You can play with the code above, here.
