INTRODUCTION TO JAVA
Java is a general purpose,object-oriented programming language developed by Sun microsystem of USA in 1991.Originally called oak by james Gosling,one of the inventors of the language.Designed for the development for consumer electronic devices like TV's,VCR's,toasters and such other electronic machines.
FEATURES OF JAVA
- Compiled and Interpreted
- Platform Independent&Portable
- Object-Oriented
- Robust And Secure
- Distributed
- Simple,Small&Familiar
- Multithreaded and Interactive
- High Performance
- Dynamic and Extensible
- Ease of Development
- Scalability and Performance
- Monitoring and Managability
compiled and interpreted
Usually a computer language is either compiled or interpreted.
Java combines both these approaches thus making java a two stage system.First,java compiler translates source code into bytecode instructions.Java interpreter generates machine code that can be directly executed by machine that is running the Java program.
Thus java is both compiled & interpreted language.
Platform Independent & portable
The most significant contribution of java over other languages is its portability.Java computer systems can be moved from one computer system to another,anywhere and anytime.Changes and upgrades in operating systems,processors,system resources will not force any changes in java programs.
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