What is overflow and underflow of variables?

Answer 1

Overflow is when you assign a value which is over the maximum permissable value

underflow is the opposite and you assign a value which is under the minimum permissable value

Answer 2

Maleeha
same thing really:

int a = -9999999999999999; //doesn't work as an integer can hold from -2^32, this is underflow

Answer 3

Agent can you give a practical example? in computer?

Answer 4

practical example:

int a = 999999999999999; //this doesn't work, as an integer can hold values up to 2^31-1 (iirc) so you have an overflow

Answer 5

got it ..and example of underflow? hinanawi

Answer 6

thank you :)