How to add two numbers of any length in java?

Question

How to add two numbers of any length in java?

Say for example, in java long size is 64 bit. So the maximum range is -9223372036854775808 to 9223372036854775807. Am i

Answer 1

Check out the BigInteger class. It will be able to perform the operations you are looking for on really large numbers.

http://download.oracle.com/javase/1.4.2/docs/api/java/math/BigInteger.html