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[Data Types]


Long variables are extended size variables for number storage, and store 32 bits (4 bytes), from -2,147,483,648 to 2,147,483,647.

If doing math with integers at least one of the values must be of type long, either an integer constant followed by an L or a variable of type long, forcing it to be a long. See the Integer Constants page for details.


long var = val;


var: variable name.
val: the value assigned to the variable.

Example Code

long speedOfLight_km_s = 300000L;  // see the Integer Constants page for explanation of the 'L'

See also