Introduction

Content

Apply

Reflect

Extend

As well as having an identifier (name), variables have a type. We have already encountered `int' (an integer). Below is a list of the most important primitive types. By primitive it is meant 'built into the language'.

• int: an integer.
• float, double: approximate real numbers.
• char: a single character.
• byte: a byte.
• boolean: true or false.

A quick recap of some high school mathematics: an integer is a whole number (e.g., 3, 0, -1000) and a real number is one that can have a fractional component (e.g., 3.1, -32.6)

Back to top

. 

RITSEC - Global Campus
Copyright ?1999 RITSEC- Middlesex University. All rights reserved.
webmaster@globalcampus.com.eg