Introduction To Java

Do you like this Article?

History :

Java is a programming language created by James Gosling from Sun Microsystems(which is now a subsidiary of Oracle Corporation) in 1991.The language was initially called Oak after an oak tree that stood outside Gosling's office, and was later renamed Java, from a list of random words.The first public available version of Java (Java 1.0) was released 1995. Over time several version of Java were released which enhanced the language and its libraries. The current version of Java is Java 1.6 also known as Java 6.0.

Overview :

1. The Java programming language consists out of a Java compiler, the Java virtual machine, and the Java class libraries. The Java virtual machine (JVM) is a software implementation of a computer that executes programs like a real machine.
2. The Java compiler translates Java coding into so-called byte-code. The Java virtual machine interprets this byte-code and runs the program.
3. The Java virtual machine is written specifically for a specific operating system.
4. The Java runtime environment (JRE) consists of the JVM and the Java class libraries.
5. Java is an object-oriented programming language and much of the syntax of Java is the same as C and C++. One major difference is that Java does not have pointers.