Java is one of the most popular programming languages used to create Web applications and platforms. It was designed for flexibility, allowing developers to write code that would run on any machine, regardless of architecture or platform.
Java can be used to create complete applications that may run on a single computer or be distributed among servers and clients in a network.
Java is a concurrent, object-oriented, computer programming language. One design
goal of Java is portability, which means that programs written for the Java platform must run similarly on any combination of hardware and operating system. We can say for java “write once, run anywhere” (WORA), meaning that compiled Java code can run on all platforms that support Java without the need for recompilation, Java applications are typically compiled to byte code that can run on any Java virtual machine (JVM) regardless of computer architecture.
Java byte code instructions are analogous to machine code, but they are intended to be executed by a virtual machine (VM) written specifically for the host hardware. Users commonly use a Java Runtime Environment (JRE) installed on their own machine for standalone Java applications, or in a web browser for Java applets. Java has been the best programming languages created in last 20 years and has been gaining popularity every passing day. Java was originally developed by James Gosling at Sun Microsystems.
Why Java is an Important Language?
Java is Easy to learn, has
Java is an Object Oriented Programming Language
Java has Rich API
Powerful development tools e.g. Eclipse, Net beans
Good collection of Open Source libraries
Great community support
Java is FREE
Excellent documentation support with Javadocs
“write once run anywhere”
Resource to learn Java programming
Simpler to use than C++
Enforces an object oriented programming model.
Java uses an automatic garbage collector to manage memory in the object lifecycle.
Application of JAVA
There are many places where Java is used in real world, starting from commercial e-commerce website to android apps, from scientific application to financial applications like electronic trading systems, from games like Mine craft to desktop applications like Eclipse, Netbeans and IntelliJ, from open source library to J2ME apps etc.
Many useful software and development tools are written and developed in Java e.g. Eclipse, InetelliJ Idea and Netbans IDE.
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