public int getConfidence() {
        return fConfidence;
    }
Get an indication of the confidence in the charset detected.
Confidence values range from 0-100, with larger numbers indicating
a better match of the input data to the characteristics of the
charset.

@return the confidence in the charset match
@stable ICU 3.4
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-text-module/src/main/java/org/apache/tika/parser/txt/CharsetMatch.java