Removing thr last two bytes from string

[KarlNorway]

Hi
I want to split a string in two. I want the last two bytes to be in one string and the rest in an other. The problem is I don't know the length of the string.

Im collecting data from a serial inputstream and the last two bytes are CRC. I need to control that crc is correct befor I handle the data in the stream.

Will some thing like this work :

input.getLength(i);
input.split(i - 2);

Or am I far off?

[JosAH]

Will some thing like this work :

input.getLength(i);
input.split(i - 2);

Or am I far off?

Sort of; can the String be shorter than two characters? Have you read the API documentation for the String class?

kind regards,

Jos

[KarlNorway]

Thanks for fast answer Jos

The shortest the string can be is 15 bytes. The crc is on 6 bytes in the message.

[JosAH]

Thanks for fast answer Jos

The shortest the string can be is 15 bytes. The crc is on 6 bytes in the message.

Ok, now read the API for the methods in the String class; pay special attention to the length() method and the substring( ... ) method.

kind regards,

Jos