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javaexceptionvalidatelongrange

NumberFormatException while converting Hexadecimal String to Long

I am trying to convert the following Hexadecimal string cc10000000008401 to Long. Java unexpectedly generating NumberFormatException.

System.out.println(Long.parseLong("cc10000000008401",16));

I think, It should not generate exception as the long representation of the above hexadecimal string is "-3742491290344848383L" which is well inside the range of Long.

Could you please help me to know why I am getting NumberFormatException?

Solution

  • In Java8, Long.parseUnsignedLong (javadoc) will handle this.

    System.out.println(Long.parseUnsignedLong("cc10000000008401",16));

    produces

    -3742491290344848383