J ava Comments and Primitive datatypes      Introduction The Java programming language is strongly-typed, which means that all variables must first be declared before they can be used. This involves stating the variable's type and name, as you've already seen: int count = 1; Doing so tells your program that a field named "count" exists, holds numerical data, and has an initial value of "1".

Java Comments: Delimiters Use // Used for commenting a single line /* ————— */ Used for commenting a block of code /** —————*/ Used for commenting a block of code. Used by the Javadoc tool for generating Java documentation.  Primitive datatypes in Java: DataType Size Default Min Value / Max Value byte (Signed integer) 8 bits 0 -128 / +127 short (Signed integer) 16 bits 0 -32,768 / +32,767 int (Signed integer) 32 bits 0 -2,147,483,648 / +2,147,483,647 long (Signed Integer) 64 bits 0 -9, 223, 372,036,854,775,808 / +9,223,372,036, 854, 775, 807 float (floating-point) 32 bits 0.0 1.4E-45 / 3.4028235E38 double (floating-point) 64 bits 0.0 4.9E-324 / 1.7976931348623157E308 char (Unicode character) 16 bits \u0000 \u0000 / \uFFFF Boolean 1 bit false  Click for Next Quick Reference  About Author Author Name           : Mr. R.Franklin Bourgia Singh Country                    : INDIA Working In               : Aryans Infoway (P) Ltd. Email                        : admin@completetutorials.co.cc Author Home Page : http://www.completetutorials.googlepages.com  Reach me!    My Web URL : http://www.completetutorials.googlepages.com    If you like this article and/or code, make a small donation to my account, Till we meet next time BYE        Send your feed-back and query to admin@completetutorials.co.cc ©2008 Bourgia