Brief Guide on Java Programming Language.
                     Brief Guide on 
Java Programming 
Language
Introduction
• Java programming language was originally developed by Sun Microsystems 
which was initiated by James Gosling and released in 1995 as core component 
of Sun Microsystems' Java platform (Java 1.0 [J2SE]).
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Latest Release
• The latest release of the Java Standard Edition is Java SE 8. With the 
advancement of Java and its widespread popularity, multiple configurations 
were built to suit various types of platforms. 
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Java - Overview
• Object Oriented − In Java, everything is an Object. Java can be easily extended 
since it is based on the Object model.
• Platform Independent − Unlike many other programming languages including C 
and C++, when Java is compiled, it is not compiled into platform specific 
machine, rather into platform independent byte code. 
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Advantages
• Simple − Java is designed to be easy to learn. If you understand the basic 
concept of OOP Java, it would be easy to master.
• Secure − With Java's secure feature it enables to develop virus-free, tamper-
free systems. Authentication techniques are based on public-key encryption.
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Advantages Cont.
• Portable − Being architecture-neutral and having no implementation 
dependent aspects of the specification makes Java portable.
• Robust − Java tries to eliminate error prone situations by emphasizing mainly 
on compile time error checking and runtime checking.
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Advantages Cont.
• High Performance − With the use of Just-In-Time compilers, Java enables high 
performance.
• Distributed − Java is designed for the distributed environment of the internet.
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Tools You Will Need
• For performing the examples discussed in this tutorial, you will need a Pentium 
200-MHz computer with a minimum of 64 MB of RAM (128 MB of RAM 
recommended).
• You will also need the following softwares −
– Linux 7.1 or Windows xp/7/8 operating system
– Java JDK 8
– Microsoft Notepad or any other text editor
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Local Environment Setup
• Java SE is freely available from the link Download Java. You can download a 
version based on your operating system.
• Follow the instructions to download Java and run the .exe to install Java on 
your machine. 
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Popular Java Editors
• Notepad − On Windows machine, you can use any simple text editor like 
Notepad (Recommended for this tutorial), TextPad.
• Netbeans − A Java IDE that is open-source and free which can be downloaded 
from https://www.netbeans.org/index.html.
• Eclipse − A Java IDE developed by the eclipse open-source community and can 
be downloaded from https://www.eclipse.org/.
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Java - Basic Syntax
• When we consider a Java program, it can be defined as a collection of objects 
that communicate via invoking each other's methods.
• Let us look at a simple code that will print the words Hello World.
public class MyFirstJavaProgram { 
/* This is my first java program. 
This will print 'Hello World' as the output 
*/ 
public static void main(String []args) { 
System.out.println("Hello World"); // prints Hello World } }
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