How to assign very large numbers to variable in java?

Question

I'm getting "integer number too large: 1000000000001" for the following code line. How do I make it so that maxValue can hold 1 quadrillion or 1 trillion?

long maxValue = 1000000000001;      //1,000,000,000,001

Answer 1

You need to use a long literal (with an L at the end):

long maxValue = 1000000000001L; //1,000,000,000,001

Note that you don't need to use BigInteger if your numbers are between -2⁶³ and 2⁶³-1 (inclusive). (2⁶³-1 = 9223372036854775807L = 0x7fffffffffffffffL.)