In general, you can view COBOL numeric data as a series of
decimal digit positions. However, numeric items can also have
special properties such as an arithmetic sign or a currency
sign.
To define, display, and store numeric data so that you can
perform arithmetic operations efficiently:
- Use the PICTURE clause and the characters 9, +, -, P, S, and V to define numeric data.
- Use the PICTURE clause and editing characters (such as Z, comma, and period) along with MOVE and DISPLAY statements to display numeric data.
- Use the USAGE clause with various formats to control how numeric
data is stored.
- Use the numeric class test to validate that data values are
appropriate.
- Use ADD, SUBTRACT, MULTIPLY, DIVIDE, and COMPUTE statements to perform arithmetic.
- Use the CURRENCY SIGN clause and appropriate PICTURE characters to designate the currency you
want.