Datatype for large integers. While integers can be as large as 2,147,483,647 and as low as -2,147,483,648 (stored as 32 bits), a long integer has a minimum value of -9,223,372,036,854,775,808 and a maximum value of 9,223,372,036,854,775,807 (stored as 64 bits). Use this datatype when you need a number to have a greater magnitude than can be stored within an int. Processing functions don't use this datatype, so while they work in the language, you'll usually have to convert to a int using the (int) syntax before passing into a function.
Test written by Daniel Hodgin// long data type example long a; // Declare variable "a" of type int a = 9876543210; // Assign "a" the value 9876543210 long b = a * 2; // Declare variable "b" and assign it the value 19753086420 long c = a + b; // Declare variable "c" and assign it the sum of "a" and "b" println(a); println(b); println(c); c = (c - 30) / 100; int i = (int)c; // Converts the value of "c" from a long to a int println(i);