将代码点附加到 java.lang.Appendable

Question

java.lang.Appendable supports append(char) but not appendCodepoint(int) .

Is there any efficient way (no object creation) using the standard libraries to append a codepoint to an Appendable that works with supplemental codepoints?

I'd rather not roll my own UTF-16 encode function, and everything in java.lang.Character requires mucking around with char[] s.

Answer 1

I mean, it sounds like what you want is just to do Character.toChars(int) without the array overhead, right? Here's the source of Character.toChars ; it's not particularly complicated to replicate yourself.