Example Programs

Where is Java Used?
	Server Side Services
		.Server. applications- Web Servers, SQL Servers...
		Servlets // HTTP Server Side .Scripting. services
		Remote Method Services, RMI, Hessian
	Client Side Services
		Applets
		Java Web start
	Standalone Applications
		Development Environments
		Document Editors
		Games

Why has it been adopted?
	Well documented.
	Freely available.
	.Easy. to program complex applications

What has changed over the past 10 years?
	Early on Java was .slow. due to interpretation
	(The difference between interpreted and non-interpreted)
	Modern java Virtual Machines use JIT(Just In Time) compiling
	Current VMs and Java Extensions support OpenGL 3D graphics!
 
Why are we in this class?
Answer:
Object Oriented Design
	An object is a memory structure that contains properties and functions
(.instance variables. and .methods.)
	Objects can be built to represent real world objects or abstract ideas.

Class Vs. Object
	A class is a blueprint to construct an object
	Multiple copies of an object can exist. (Usually in Memory only)
	Only one class definition will exist. (Usually on Disk only)

Primitive Data Types (See appendix D)
	int (32 bits)
	short (16 bits)
	long (64 bits)
	boolean (platform specific)
	float (32 bits)
	double (64 bits)
	byte (8 bits)
	char (16 bits)

Non-Primative Data Types(Objects)
	Integer
	Long
	Short
	Float
	Double
	Byte
	BigInteger
	BigDecimal
	String

Boolean Operators
	==, <=, =>, <, >, ^, &&, ||, &, |

Assignment Operators
	=, +=, -=, *=, /=, %=, ++, --