Integers

what are they?

numbers that do not have a fractional part

• number of students in class;
• how many times you do something.

how do we use them in programs?

declare a variable of either type int or long

• int - can accommodate from -32768 to +32767
• long - can accommodate a higher range (9 digits)

no warning if overflow!

if you store a number that does not fit, result is unpredictable!

int k = 20000+20000; ---> ???

unsigned

examples