AP CSA Unit 1: Lesson 6 - Numeric Casts

numeric casts

an important part of doing number calculators accurately

casting

process of converting one data type to another

widening conversion

to move a data type into a bigger box

narrowing conversion

to move a data type into a smaller box

truncates

it just chops off whatever is after the decimal point and throws it away

round a positive

add 0.5 before casting to an int

round a negative

subtract 0.5 before casting to an int