• Contact Us
Wednesday, June 18, 2025
TheBackBuffer
  • Login
  • Home
  • Reviews
  • Security
  • Business
  • Gadgets
  • Gaming
No Result
View All Result
  • Home
  • Reviews
  • Security
  • Business
  • Gadgets
  • Gaming
No Result
View All Result
TheBackBuffer
No Result
View All Result
Home Technology

The Overview of Java Programming Language

by Veronika Zenz
in Technology
0
Java Programming Language
0
SHARES
112
VIEWS
Share on FacebookShare on Twitter

Java is a programming language that has been with us for more than 18 years now but is still, in a way, unknown. A few years ago, you mentioned the name of Java applets and applications and reminded of Java platform. Here you will discover a little more about Java about its history and what it does.

Brief History of Java

Java is a programming language created in 1995 for the same name computing environment by Sun Microsystems. It is said that its name came come from Java Coffee, a cafeteria where its programmers often visited and it is reflected in the logo Java in which we can see of steaming cup of coffee.

Its philosophy is WORA (Write Once, Run Anywhere) allows the developers to port their applications to different systems with little effort, although the variety of devices that can run Java applets leads segmentation between Java desktop applications, business applications and mobile phone applications. In 2010, Oracle bought Sun Microsystems, becoming the new owner of Java.

What is Java for?

Like any programming language, Java is used to create applications and processes that run on a variety of devices. The standard version of Java is responsible for several well-known applications like jDownloader, Vuze and Minecraft.

Java applications communicate with Java Virtual Machine, and not the operating system, which allows programmers to ignore the hardware compatibility.

Java applets are not the only small applications that run on web browser, and but also are required to have installed the corresponding Java plugin included in the standard installation of Java. These applets, embedded in webpages, made things impossible for HTML such as using the camcorder, performing complex operations with images, or creating complex chat systems.

Today, however, the add-ons for the browser as Java and Flash are facing an uncertain future with the advent of HTML5. This version of the web standard, already supported in most browsers, is capable of dealing with multimedia, graphics and local storage in a way that is possible only with add-ons.

Mobile Java applications are based on a shortened version of Java, Java ME (Micro Edition), available in different profiles. These applications can work on a large number of compatible terminals. According to figures from Oracle, there are two billion phones compatible with Java. You can still today find great games that are still running for Java, plus applications such as LINE.

Where is Java Used?

If you paid attention during the installation of Java, you will find Java is present in three billion devices.

  • In computers, Windows, Mac, Linux and Solaris which are more than one billion according to Oracle.
  • Three billion mobile phone
  • Routers
  • Parking meters
  • ATMs
  • Credit cards
  • EBook Readers
  • Televisions
  • PlayStation Consoles
  • Mobile VOIP
  • MRI (Magnetic Resonance Imaging)
  • DVD and Blu-Ray Players

Do you need to install Java?

The answer is probably no. As we said before, Java is still used in applications or in the form of applets integrated in webpage, but if you need it, you will know it. That is, generally you will not need to worry about installing Java unless you need to. And, if you need it, the application or website will be in charge of letting you know.

A Java project is an orderly and organized series according to a logic to keep the code in organized folders. A project usually consists of .java files, .class files, and documentation.

.java Files contain the source code (understandable by humans) in a given time can modify with a text editor and usually found in folders named src (source). The .class files contain bytecode (not understandable by humans but by the Java Virtual Machine) and are usually found in folders named bin (binary).

The organization of the files in folders and the presence of additional ones depends on the development environment that you use. In addition, Java introduces an organizational scheme through packages.

To work with Java projects in most environments, including BlueJ, you have them in an accessible recordable media e.g. in a folder on your hard drive. A project on CD or DVD is not valid because the development environment works by recording information in the active project folder. Therefore, a non-writable medium is not suitable. If you want to work with a project contained in a CD OR DVD, you will have to first copy it to your hard disk and then open it to work with it.

Let’s create your first Java project. For this, it is necessary to create first a folder where to store the project that you are creating. Do it on the route that you think is most appropriate. We will use C: / LearnProjectJava. Click on the Project -> New Project menu and look for the folder where we are going to save the project.

Where you put “File name”, you we will write ProjectP1 or any other name that we consider appropriate.

Then on the left side, you we click on New Class where it asks for the name of the class and you write “Example” and press accept. You will see an icon with the name “Example” and cross stripes. That icon represents a class. Now let’s run a little test. Click on the “Compile” button.

When creating the class, you have created a file named Example.java. By clicking on “Compile”, you have transformed the code that contained that file into bytecode and created the file Example.class. But what code have you compiled if we have not written anything? Indeed, you could not compile anything empty. The explanation is that when creating an empty class, BlueJ creates it with a default code, let’s say a very basic example of code that is already compilable. Let’s check what I said about the files: for this you go to the file explorer and you we go to the path where you saved the project.

In this route, you check the files of your project as follows;

  • Example.java: Java language source code.
  • Example.class: bytecode or machine code for Java Virtual Machine.
  • Other files: files created by BlueJ at the moment but you did not notice.

Now click on the icon of the file Example.java and with the right mouse button choose “Open” to see it with a text editor like the notepad. When you open the file you will see the source code. Close the editor and try to repeat the process with the file icon Example.class. The result will be that Windows tells you that it does not know how to open that file, or if it manage to open it, what you see is series of rare characters. This agrees with what I said: the source code is made up of text and you can see and edit it. The bytecode is a type of machine code, so we cannot edit it directly because it is not understandable to you at this stage.

We have already seen that the file Example.java contains a code. That’s the reason you have been able to compile using BlueJ. Return to BlueJ and to access the code that is in the class, you double click on the icon, which will open the window of the editor of BlueJ and you can continue working on it.

For Java examples, keep visiting browsing and visiting this blog and you will find a plenty of the authentic Java examples.

ShareTweetShare

Related Posts

Technology

SIP vs. VoIP: What’s the Difference and Which is Right for Your Business?

March 31, 2023
self-healing
Technology

Eliminate broken Tests and Manual Maintenance with self-healing AI

March 17, 2022
Wireless Voip Phones
Technology

Top 7 Benefits – Wireless Voip Phones For Home Or Business In 2022

December 13, 2021
Voip Phone System
Technology

SIP Trunking Is A Great Reason For Having A Voip Phone System

November 26, 2021
Technology with Depression
Technology

The Link Among Modern Media and Technology with Depression

November 3, 2021
gps tracker
Technology

How To Choose A GPS Tracker And How To Track A Vehicle With GPS

September 9, 2021
Next Post
Java

What is Java?

  • 52.2M Fans
  • 139 Followers
  • 952 Subscribers
  • 309 Followers

Recommended

5 Tips to Handle the Auditor and Audit Comfortably

5 Tips to Handle the Auditor and Audit Comfortably

December 31, 2019
email marketing

Tips To Effective Email Marketing

May 19, 2021
What Advisory Services Do I Need To Have For My Business?

What Advisory Services Do I Need To Have For My Business?

April 4, 2020
Mario Character Names

List Of The Mario Character Names Of The Bad Guys

April 24, 2020
What Should You Have In Your Serviced Office?

What Should You Have In Your Serviced Office?

April 4, 2020
Audit

A Complete Overview Of The Audit In A Company

November 29, 2021
  • Contact Us
  • Privacy Policy
  • Terms and Conditions
  • Write for Us

DISCLAIMER
TheBackBuffer is not responsible for the authenticity of the product reviews. All the reviews are for informational purpose only.
© 2020 TheBackBuffer. All right go to their respective owners

No Result
View All Result
  • Homepages
    • Home – Layout 1
    • Home – Layout 2
  • Reviews

© 2020 TheBackBuffer.com - Find best guides, tips and reviews about gaming, business, online and tech.

Welcome Back!

Login to your account below

Forgotten Password?

Create New Account!

Fill the forms bellow to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In