subtraction : Java Glossary

home page go to the Java Glossary Home go to the Computer Buyer’s Glossary up jump to foot of page Google search web for more information on this topic Pinterest pin button
* 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z (all)
©1996-2017 2008-10-19 Roedy Green of Canadian Mind Products

subtraction
- is the Java subtraction operator. There are two subtraction operators, integer and floating point, but they both use the same operator symbol. Integer subtraction works on byte, char, short, int and long and always results in an integer, i.e. no fraction. If the results of subtracting two ints is too big to fit in an int, the high order bits will be discarded or considered as a sign bit, without any sort of exception.

Floating point subtraction works on float and double. Floating point subtraction results in a fractional value that can be represented in IEEE (Institute of Electrical & Electronics Engineers) format.

Subtraction is left associative. That means a - b - c means (a - b) - c not a - ( b - c ). Subtractions are performed left to right.

- can also be used an a unary operator, e.g. a = -b;

Learning More

JLS (Java Language Specification): expression evaluation order

This page is posted
on the web at:

 http://mindprod.com/jgloss/subtraction.html

Optional Replicator mirror
of mindprod.com
on local hard disk J:

 J:\mindprod\jgloss\subtraction.html
Canadian Mind Products
Please the feedback from other visitors, or your own feedback about the site.
Contact Roedy. Please feel free to link to this page without explicit permission.

IP:[65.110.21.43]
Your face IP:[18.222.163.134]
You are visitor number