Java is a high-level programming language developed by the sun microsystem. First, it was conceived by James Gosling, Patrick Naughton, Chris Warth, Ed Frank, and Mike in the year 1991. Initially, it was named “Oak” it was renamed as “Java” in the year 1995. Java is a highly object-oriented, platform-independent and secure programming language.
One of the most important factors in the java programming language is its Bytecode conversion. Byte codes in Java are highly optimized set of instructions designed to be executed by Java Virtual Machine. JVM works as an interpreter for the byte code.
To use java programming language we require JDK (Java Development Kit) and this includes JRE (Java Runtime Environment).
- Simple
- Object-oriented
- Platform independent
- Multithreaded
- Robust
- Architecture neutral
- Distributed
- Java is used in various application developments following are some real time applications of java.
- Desktop GUI applications
- Mobile applications
- Embedded System
- Enterprise Applications
- Web Applications
Simple Java Program
public class SimpleExample1
{
public static void main(String[] args)
{
int a=10;
System.out.println(“Hello…..”);
System.out.println(“Value of a=”+a);
}
}
Output:
Hello…..
Value of a=10
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