Should you use international identifiers in Java/C#?

Question

C# and Java allow almost any character in class names, method names, local variables, etc.. Is it bad practice to use non-ASCII characters, testing the boundaries of poor e

Answer 1

As already pointed out, unless method names mostly match the language, it is a bit weird to constantly switch languages while reading.

For the Scandinavian languages & German, which I can speak and thus speak for, I would at least recommend using standard substitutions, ie.

ä/æ -> ae, ö/ø -> oe, å -> aa, ü -> ue

etc. just in case as others may find it difficult to type the original letters without keyboard/keymap changes. Think if you suddenly had to work with a codebase where the developers used a third language (for instance including the French ç) and didn't do this.. Switching between more than 2 keymaps to type efficiently would be painful in my experience.