Beginning Java
What is java
Java is a set of several computer software and specifications developed by SunMicrosystems, later acquired by Oracle Corporation, that provides a system for developing application software and deploying it in a cross-platform Computing environment. Java is used in a wide variety of computing Platforms from embedded devices and Mobile Phones to enterprise Servers and supercomputers. While less common, JAVA APPLETS run in secure, sand-boxed environments to provide many features of native applications and can be embedded in HTML pages.
Writing in the Java Programming Language is the primary way to produce code that will be deployed as byte code in a Java Virtual Machine(JVM) byte code compilers are also available for other languages, including Ada, JavaScript,Python ,and Ruby. In addition, several languages have been designed to run natively on the JVM, including Scala, Clojure and Groovy.Java syntax borrows heavily from C and C++ but object-oriented features are modeled after Smalltalk and Objective-c Java eschews certain low-level constructs such as pointers and has a very simple memory model where every object is allocated on the heap and all variables of object types are references. Memory management is handled through integrated automatic garbage collection performed by the JVM.
On November 13, 2006, Sun Micro systems made the bulk of its implementation of Java available under the GNU General Public License (GPL).
Introduction to Java
First of all download JDK(Java Development Kit) on your computer, Clcik Here to download JDK and instal JDK on your computer
After installation click on start menu after that
click on run and type cmd and press enter, Now open the folder where
your java programs saved. For example suppose my programs are saved in
java folder in c, Now type on command prompt : -
cd java and press enter, Now you will
automatically enter the java folder on c drive, After that you have to
give the path where your JDk is installed after this you are ready to
make and execute your program in java
