Computer Project Part1

A high-level programing language developed by Sun Microsystems. Java was originally called OAK, and was designed for handheld devices and set-top boxes. Oak was unsuccessful so in 1995 Sun changed the name to Java and modified the language to take advantage of the burgeoning World Wide Web. Java is an object-oriented language similar to C++, but simplified to eliminate language features that cause common programing errors. Java source code files (files with a .java extension) are compiled into a format called byte code (files with a .class extension), which can then be executed by a Java interpreter. Compiled Java code can run on most computers because Java interpreters and runtime environments, known as Java Virtual Machines (VMs), exist for most operating systems, including UNIX, the Macintosh OS, and Windows. Byte code can also be converted directly into machine language instructions by a Just-In-Time Compiler (JIT). Small Java applications are called Java applets and can be downloaded from a Web server and run on your computer by a Javacompatible Web browser, such as Netscape Navigator or Microsoft Internet Explorer. James Gosling is known as “Father of Java”. When he had developed this language, he named it “Oak”. James got the name OAK because he was staring at the oak tree outside his office window when he was thinking of the language’s name. People think that the name JAVA came into existence after the name of the brains that developed it James Gosling, Arthur Van Hoff and Andy Bechtolshein.

In 1991, the Sun Microsystems (Broomfield Colorado, U.S.A) set a team under James Gosling for development of a computer language to support columns human digital devices and web browsing. In the summer of 1992 a working version was produced with the name OAK which was later changed to JAVA. This was formed to be an adjunct to Web Technology, when in 1993 Mosaics Web Browser was released. Still it was urgent that two requirements were fulfilled: 1. Architecture And Independence 2. Security.

JAMES GOSLING Web users might be using different types of machines. Web servers should be able to serve one and all in spite of architectural differences of the machines. This was achieved by designing a Java Virtual Machine (JVM) which can compile a downloaded application program (applets) converting into byte codes. In 1984 Hot java browser containing the Java Virtual Machine was developed by Sun Microsystems. To provide security guards ensure that the web server in no way could have access to information of the user’s computer.

On May 23, 1999 Netscape Communications having more than 70 % share of the web browser market at that time, date lead that as part of Netscape Navigators, java virtual machine was a amalgamated. Guys are shut in an era which witnessed mushrooming of java use. Originally, John was designed to execute applets downloaded while web browsing. But gradually, and language has been gaining acceptance as a programming language, very often replacing C or C++. In 1999 Sun Microsystems produced Java2 with Software Development Kit (SDK), version 1.2 and took copyright. JAVA is an object oriented programming language. It was developed as a full fledge programing language in which one could accomplish the same sorts of tasks and solve the similar problems that one can in other programing languages, as C ++, BASIC etc. The platform independence is one of the most significant advantages that JAVA has over other programing language. It is the capacity of moving from one computer system to another. JAVA, being an object oriented programing language encapsulates many features of C ++. It also includes a set of class libraries that providing basic data types, system input and output capabilities, and other utility methods.