Storing large decimal numbers in Java

Question

I need to store 17774132 in a double format, but it seems that double is to small since I get 1.7774132E7.

How can I overcome this problem? I need some kind of primitive that can hold it with floating point.

Thank you

Answer 1

In java if you want accurate calculations for large numbers with fractions, you should use java.math.BigDecimal class. The integer counterpart is java.math.BigInteger.

Also I think double can accomodate 17774132, it's just showing the value in something called as "E Notation" which a Scientific notation to denote numbers. Refer to this : http://en.wikipedia.org/wiki/Scientific_notation#E_notation

Answer 2

Remeber that means 1.7774132 * 10^7, so the value is represented by:

1.7774132 * 10000000

That's a big number, don't you think?

Java outputs by default on scientific notation if needed. Big numbers like that are expressed in scientific notation.