Question

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Java: length of string when using unicode overline to display square roots?

How do I get number of Unicode characters in a String?

Given a char[] of Thai characters:

[อ, ภ, ิ, ช, า, ต, ิ]

This comes out in String as:
อภิชาติ

String.length() returns 7. I understand there are (technically) 7 characters, but I need a method that would return me 5. That is the exact number of character spaces represented on screen.

Answer 1

Seems you just want to not count the unicode marks as separate characters;

static boolean isMark(char ch)
{
    int type = Character.getType(ch);
    return type == Character.NON_SPACING_MARK ||
           type == Character.ENCLOSING_MARK ||
           type == Character.COMBINING_SPACING_MARK;
}

which can be used as;

String olle = "อภิชาติ";
int count = 0;

for(int i=0; i<olle.length(); i++)
{
    if(!isMark(olle.charAt(i)))
        count++;
}

System.out.println(count);

and returns ‘5’.