Chapter 1: Java Tutorial and Introduction to this course

Java Tutorial

Java is a programming object-oriented, class-based, concurrent, secured and general-purpose computer-programming language. It is a widely used robust technology.Java is used to develop mobile apps, web apps, desktop apps, games and much more.

Java Introduction

What is Java?
Java is a popular programming language, created in 1995.

It is owned by Oracle, and more than 3 billion devices run Java.

It is used for:

  • Mobile applications (specially Android apps)
  • Desktop applications
  • Web applications
  • Web servers and application servers
  • Games
  • Database connection
  • And much, much more!

Why Use Java?

  • Java works on different platforms (Windows, Mac, Linux, Raspberry Pi, etc.)
  • It is one of the most popular programming language in the world
  • It is easy to learn and simple to use
  • It is open-source and free
  • It is secure, fast and powerful
  • It has a huge community support (tens of millions of developers)


public class MyClass {

  public static void main(String[] args) {

    System.out.println(“Hello World”);




Hello World
Download Java from the official Java web site: