Method substring

lib/java/lang/String.java:1401–1409

Copies a range of characters into a new string. @param start the offset of the first character. @return a new string containing the characters from start to the end of the string. @throws IndexOutOfBoundsException if start < 0 or start > length().

(int start)

     *             if {@code start < 0} or {@code start > length()}.
     */
    public String substring(int start) {
        if (start == 0) {
            return this;
        }
        if (0 <= start && start <= count) {
            return new String(offset + start, count - start, value);
        }
        throw new StringIndexOutOfBoundsException(start);
    }

    /**
     * Copies a range of characters into a new string.