Basics Of Java With Simple And Effective Notes

                             History of Java

• James Gosling and team developed the language
‘Oak’ around 1990.

• It was designed to control microprocessors for
electrical appliances like toaster, set top box, vcr, pda
etc.

• There aim was to make it platform independent.

• Latter language Oak renamed to Java.

• By 1994 Sun's HotJava browser appeared.

• Applets of java become very popular.

                                  What is Java?
 
• A high-level language
– The Java language is a high level one that at a glance

• Java byte code
– The Java language source code to byte code that
runs in the JVM.

• Java Virtual Machine
– The actual workhorse




                             Evolution of Java

• Development of Oak (1990)
• Internet Explosion (1993)
• Version 1.0 of the Java Development Kit (JDK) (1995)
• Version 1.1 (1997)
• Version 1.2 (1999)
• Version 1.3 (2000)
• Version 1.4 (2002)
• Version 5.0 (2005)




                                     Editions of Java

• Java 2 Standard Edition (J2SE)
– A core set of components to create simple
applications and support the advance applications

• Java 2 Enterprise Edition (J2EE)
– It provides a wide array of tools for building
middle ware software such as for database access
applications, online storefronts, and other
services.