How to convert a bytes string to unicode value to display emoji in Java?

Question

I used the pepibumur/emojize in web project, not Android or iOS.

The project defined the relationship with unicode and word, so I must find the emoji string and convert to unicode.

the emoji unicode table like that http://apps.timwhitlock.info/emoji/tables/unicode .

I already get the byte string like that \\xf0\\x9f\\x9a\\x92 .

But I didn't know how to convert to the unicode U+1F692 , How to convert? Thank you!

Answer 1

To convert from UTF-8 bytes you need:

String s = new String(new byte[]{(byte) 0xF0, (byte) 0x9F, (byte) 0x98, (byte) 0x81}, "UTF-8");

But it's too complex, and I recommend to use value from Surrogates column:

String s = "\uD83D\uDE4C";