How to represent a big number in Java

Question

How can I represent and use a large number in Java? In scientific computing there are a number of times that I need numbers to be greater than a long.

score 0 · Answer 1 · answered Jul 02 '15 at 05:35

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You should use BigInteger for this..

They can be as large as you need - until you run out of memory.

eg:

BigInteger Bigintvar1 = new BigInteger("1234567890123456890");
BigInteger Bigintvar2 = new BigInteger("2743561234");
Bigintvar1 = Bigintvar1.add(Bigintvar2);

answered Jul 02 '15 at 05:35

Sarath

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I have tried it. thanks – lacksledge Jul 03 '15 at 08:28

score 0 · Answer 2 · answered Jul 02 '15 at 05:39

0

The java.math.BigInteger class provides operations analogues to all of Java's primitive integer operators and for all relevant methods from java.lang.Math.

You can refer here for BigInteger

answered Jul 02 '15 at 05:39

TryinHard

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How to represent a big number in Java

2 Answers2