How do I detect unicode characters in a Java string?

Question

Suppose I have a string that contains Ü. How would I find all those unicode characters? Should I test for their code? How would I do that?

For example, given the str

Answer 1

You could loop through your string and for every character call

If (Character.UnicodeBlock.of(c) != Character.UnicodeBlock.BASIC_LATIN) {
 // replace with Y
}