Question

I have String:

String str = "KITTEN";

And I would like to make a byte[] from it, but just:

byte[] mybyte = new byte[] { 'K', 'I', 'T', 'T', 'E', 'N'}

Anyone knows how to change String to that byte[]? Everything what I can find is about actual converting – please note that I don’t want to have hex representation of string.

PS. Title of question may be wrong – I’m sorry for that, didn’t know how to write it.

EDIT:

byte[] myBytes = str.getBytes();

Displaying:

byte[] display = new byte[] { 0x00, 0, 0, 'K', 'I', 'T'}; 

works, and displaying:

byte[] display = new byte[] {  0x00, 0, 0, myBytes[0], myBytes[1], myBytes[2] }; 

doesn’t work.
I try to display it on the screen of my device connected to the android phone by NFC. Do you know what’s make the problem?

Answer 1

getBytes() works for me:

String str = "KITTEN";
byte[] bytes = str.getBytes();
for(byte b : bytes) {
    System.out.print("'" + (char) b + "' ");
}

'K' 'I' 'T' 'T' 'E' 'N' 

Everything else what @Jon writes is still valid, as getBytes() is also doing a conversion:

Encodes this String into a sequence of bytes using the platform’s
default charset, storing the result into a new byte array.

Since using getBytes() introduces some platform dependencies, you should better explicitly pass an appropriate Charset:

byte[] bytes = str.getBytes(StandardCharsets.ISO_8859_1);