Method parseFloat

vm/JavaAPI/src/java/lang/StringToReal.java:286–315

Returns the closest float value to the real number in the string. @param s the String that will be parsed to a floating point @return the float closest to the real number @exception NumberFormatException if the String doesn't represent a float

(String s)

     *                if the String doesn't represent a float
     */
    public static float parseFloat(String s) {
        s = s.trim();
        int length = s.length();

        if (length == 0) {
            throw invalidReal(s, false);
        }

        // See if this could be a named float
        char last = s.charAt(length - 1);
        if (last == 'y' || last == 'N') {
            return parseName(s, false);
        }

        // See if it could be a hexadecimal representation
        // We don't use startsWith because there might be a leading sign.
        /*if (s.indexOf("0x") != -1 || s.indexOf("0X") != -1) {
            return HexStringParser.parseFloat(s);
        }*/

        StringExponentPair info = initialParse(s, length, false);
        if (info.infinity || info.zero) {
            return info.specialValue();
        }
        float result = parseFltImpl(info.s, (int) info.e);
        if (Float.floatToIntBits(result) == 0xffffffff) {
            throw invalidReal(s, false);
        }
        return info.negative ? -result : result;
    }
}