I need a solution for Java's limitation in calculating and storing big numbers

Question

in python with a simple loop you can calculate, let's say 600! it's a very very big number but python can easily take care of it in a fraction of a second.even it's more than 200 digit long. in java in the other hand you are bound to 64bit literals (long data type). so the machine will return 0.
is there any way to overcome this?

Answer 1

You can use the Java BigInteger class.

And a simple example:

import java.math.BigInteger;  BigInteger k = BigInteger.valueOf(10000L); k = k.pow(10000); //k is now 10000^10000  System.out.println(k.toString()); 

It's important to know that the class is immutable. You can also look into the similar BigDecimal class for arbitrary precision signed decimal numbers.