Method codePointAt

lib/java/lang/String.java:1854–1860

Retrieves the Unicode code point (character) value at the specified index. @param index the index to the char code unit within this string. @return the Unicode code point value. @throws IndexOutOfBoundsException if index is negative or greater than or

(int index)

     * @since 1.5
     */
    public int codePointAt(int index) {
        if (index < 0 || index >= count) {
            throw new IndexOutOfBoundsException();
        }
        int s = index + offset;
        return Character.codePointAt(value, s, offset + count);
    }

    /**
     * Retrieves the Unicode code point value that precedes the specified