# File lib/UTF8Prober.rb, line 79
        def get_confidence
            unlike = 0.99
            if @_mNumOfMBChar < 6
                for i in 0...@_mNumOfMBChar
                    unlike = unlike * ONE_CHAR_PROB
                end
                return 1.0 - unlike
            else
                return unlike
            end
        end