Java exception invalid int for long integer

Question

I\'m currently developing a math application that makes long computations. I\'m getting java.lang.NumberFormatException: Invalid int: \"...\" error (where the ... is replaced by

Answer 1

Java's int datatype is limited to the values of -2,147,483,648 to 2,147,483,647 (inclusive). If you want larger 'integer' values I'd recommend using the long datatype.

Answer 2

The maximum value for an int is 2³¹-1, i.e. 2,147,483,647. If you try to parse a larger number than that, the exception will be thrown.

If you need to handle larger numbers, either use long for a generally larger range (up to 2⁶³-1) or BigInteger for an arbitrary size.