accented words

In my app, some users enter their names using accent characters. Basically these are the characters you get when you long-press certain letters. Like when you do that on 'a', you can see some characters like 'a' with two dots on top and all. I want to check if a field contains one or more of...

Hello guys, I'm reading words from a .txt file to a list but some accented words are replaced by a "?". Is there something I have to do in order to preserve the original accented words? I read some threads about UTF8 conversion. Do I have to byte-convert each caracter or is there an option...