hello all, i have two binary numbers that i want to add together from variables in java is there any way i can do it? i.e:

1010 + 1010 = 10100

please, please help i would be eternally grateful i have looked all over the web but found nothing of interest. cheers

Third link on Google:
Java Programming: Unit 1: Binary Addition

sorry mate im a bit of a newbie to java, i cant seem to find the code to just add two binary numbers together, there seems to be some sort of graphical binary program that im not really sure how its working (algerithum wise). Cheers.

In a computer everything is stored as binary internally, so your questions doesn't make much sense to me. Do you mean that you have two strings of ones and zeros that you want to convert to binary and add? If so, I'd just iterate over the strings to construct a numeric variable (easy, if there's a one at position n from the last, add 2^n to your number), then add the numbers and convert the results back to a string of 1s and 0s to dispaly for the user.

Hi -

btmiller is absolutely correct: you don't have to do anything special to "add in binary". You just ADD two numbers - nothing more!

To *read* a binary number, however, you'll need to convert the character string (e.g. "0110") into the corresponding int (e.g. "6"). Similarly, to *display* as a binary value, you'll need to convert the number into a string of ones and zeros.

This page might be helpful:
http://mindprod.com/jgloss/binary.html

If we're not understanding you correctly, please post some sample code (or pseudo-code) to give us a better idea of what you're actually trying to do.

Thanx in advance ... and good luck!

Your .. PSM

Say you have 2 string bnum1, and bum2 that are suppose to be binary numbers.

int sum = Integer.parseInt(bnum1, 2) + Integer.parseInt(bnum2, 2);

You're absolutely right, 95se. I'm a bit embarrassed that I didn't just say it myself! Thank you!

Sincerely .. PSM

I didn't realize that parseInt could handle binary strings -- that's good to know.

Edit: Just realized the link I posted was an actual full tutorial, not just the actual code.

cheers you are all living legends thank you!!!!