Question

I’m parsing a string of 15 digits like this:

String str = "100004159312045";
int i = Integer.parseInt(str);

I’m getting an exception when doing so.
Why? What are the limitations for Integer.parseInt? What other options do I have for converting such long string to a number?

Answer 1

Your number is too large to fit in an int which is 32 bits and only has a range of -2,147,483,648 to 2,147,483,647.

Try Long.parseLong instead. A long has 64 bits and has a range of -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807.