Method isNot

src/main/java/org/apache/commons/lang3/CharRange.java:185–187

Constructs a negated CharRange over a single character. A negated range includes everything except that defined by the single character. @param ch only character in this range. @return the new CharRange object. @since 2.5

(final char ch)

     * @since 2.5
     */
    public static CharRange isNot(final char ch) {
        return new CharRange(ch, ch, true);
    }

    /**
     * Constructs a negated {@link CharRange} over a set of characters.