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created: 02/15/98; revised: 07/31/99, 01/18/00, 06/01/00, 05/11/03, 01/13/06

CHAPTER 11 — Floating Point

The Java primitive types include the floating point types float and double. Floating point numbers are those that include a fractional part. When written for human viewing, a floating point number includes a decimal point. For example, 3.14159 and -0.718802.

Chapter Topics:

All of the familiar mathematical functions such as sine, log, and square root are available to your program in the Java Math class. These functions typically expect data type double.


Which uses more bits: a Java float or a a Java double ?