Method CharSet

src/main/java/org/apache/commons/lang3/CharSet.java:176–181

Constructs a new CharSet using the set syntax. Each string is merged in with the set. @param set Strings to merge into the initial set @throws NullPointerException if set is null

(final String... set)

     * @throws NullPointerException if set is {@code null}
     */
    protected CharSet(final String... set) {
        super();
        for (final String s : set) {
            add(s);
        }
    }

    //-----------------------------------------------------------------------
    /**