What is java and how do you learn it?

What is java and how do you learn it?

You must have heard the name Java. But this question should come to your mind  what is java (what is java) and how to learn java programming language with it. We will answer this in today’s article and would like to provide more information about it.

Nowadays, the demand for programming language is very high. If I tell you something interesting, your senses will fly away. Nowadays, Java code is used in more than 3,000,000 electronic devices. From this you can guess how popular this programming language is.

It is still used in all the smartphones you use and electronic devices such as the air conditioner, oven, smart TV, and digital refrigerator. Programming of various parts in the equipment of some automated industries. If you want to learn Android programming, it is very important to learn Java. So let’s know what is Java .

What is java?

Java is a general purpose programming language. They are used to develop programs and applications. Java is a high level programming language. It was started by Sun Micro System in 1995 .

James Gosling is one of its lead developers. This is the platform independent language. You can run the code written in it in any platform or operating system.

All codes written in it are in English and not in numeric codes. Anyone can understand the written symbols very easily. That’s why it is included in the high-level language. It follows the concept of Oops. The basics of C++ language were used in this.

Some rules are followed to write a program called syntax. Writing a program without the syntax gives an error. Like when you write Hindi or English, if you don’t follow Grammers rules, it will go wrong, however, it is very important to follow the grammar in it.

What is the use of java

This computer programming language has only one purpose. Any code written in it should run on all computers. Whether these two machines are the same or not, I mean to say, regardless of the operating system (Windows or Mac), for example, code written in C++ is not the same as executing in another machine. Code written in Windows never works in Mac OS, but that’s a bug in the case of Java.

It is used to create programming on the web, mobile applications, and software. All Android operating systems like Kitkat, Lolipop and Oreo are developed from this programming language. All web pages in today’s time run on Java Script. There will be a question in your mind about how to implement the code.

How Java program code is run or executed

This language uses an abstract computing machine to run the code, which is called the Java Virtual Machine . It is very important that you understand this.

Java Virtual Machine

Its short form is JVM. It is a virtual computer that runs all Java programs. When a program is written, it is called source code. Byte code is generated by compiling this source code with the help of Java Compiler. The JVM is used to implement this bytecode. The JAVA compiler is inside the JVM and runs the same program.

Know one thing, all computers running Java already have the JVM installed. That’s why this code works in all computers. That’s why java is a platform independent language. Compiler for all other programming languages ​​that produce the code. They are born to the same system and operate in the same system. But the bytecode generated by the Java compiler is for the JVM.
Since the JVM is in the whole system, this program runs in every computer. This allows the Virtual Machine code to run in the operating system.

independent platform

By its name, you must have understood that it is not platform dependent. Platform here means operating system. Like Windows, Linux, Mac and Android. When we write programs or make any software, they all run on the primary operating system. But there are some programs that run on the same computer and operating system only, and these programs are called platform-based programs. If there is a program that runs the code on all other platforms (running means running). So it is called platform independent code.

This means that java is a programming language whose code runs on all platforms. There is a saying “write once run anywhere”. Now let’s talk, where it is used and what is the use.

What is the purpose of making java (using java)

You will know that all programming languages ​​exist and have been before. All of them follow a procedural structure. Next came the concept of Obeject Oriented, and I am glad Obeject Oriented has changed the entire programming industry today. This programming language also follows this concept.

You must consider that although there are many computer languages ​​already, what is the specialty in them. In today’s time, you must be aware of the huge demand for internet applications. Whether it is online video/photo editing, whether it is to convert something online like creating Word files to PDF, ZIP or RAR, it all comes down to it.

Filling out an online form, an online calculator, all this was possible only with the help of Java. Java works in conjunction with other web languages ​​in the Internet. It is clear that Internet applications and tools have been developed. If we compare other languages, then it is easily implemented on the Internet. It is also easy to write programs in this.

A powerful web application can be created with the help of Java Script, JSP (Java Server Pages), and Java. You can easily implement Java applications in the web. With the help of this, you can also write offline programs that also work without the internet. I would like to give you this advice now and if you want to do something in the SW world, you should definitely learn it and how to learn this language, you will get information about it in this article. So far you have learned a lot but you should also know its history.

The date set for java 

Its history is very funny, so it is very important for you to know about it. It started with the Green Team. The Java team members have been called the Green Team. The sole purpose of this team was to create an AC language that could be programmed into electronic devices such as set-top boxes and televisions. It was an advanced concept at the time. But it proved to be more useful for the internet going forward. After some time I got hold of this technology with NetScape.

James Gosling

James Gosling is one of the lead developers for JAVA. Nowadays, Java is used for programming the Internet, mobile devices, games, and e-business solutions.
James Gosling, Mike Sheridan and Patrick Naughton started the Java language project in 1991. He put together a team of engineers to work on this project, and the team name was this Green Team. The notation for this language was written in C.
James Gosling called this language GreenTalk and had the .gt file extension. Later its name was changed to Oak.

Why is it called OK?

Oak is also called a symbol of strength. The oak is the national tree of the Westin states (USA, France, Germany, Romania). In 1995, Oak was renamed Java, as Oak was already a trademark of the Oak Technologies Company at the time. Now the next question has come, why is it called Java and why not any other name.

Why is it called Java?

When the green team together chose the name Hok Language. All team members offered some name suggestions like Dynamic, Revolutionary, Silk, Jiot, and DNA. He wanted a name that represented his technology. Any name is revolutionary, dynamic, lively, cool, unique. According to James Gosling, there were finally two names of suggestions, one Silk and one Java. The Green Team found the JAVA name to be quite unique, and eventually that name was retained.

Java was the name of the island of Indonesia. Where was the first coffee produced? Developed at Sun Microsystem. Now it is part of Oracle Corporation. JDK 1.0 was released in January 1996.

java release date

Over time, different versions of JAVA have been released, the information is given below.

  • JDK Alpha and Beta (1995)
  •  1.0 (January 23, 1996)
  • 1.1 (February 19, 1997)
  • J2SE 1.2 (December 8, 1998)
  • J2SE 1.3 (May 8, 2000)
  • J2SE 1.4 (February 6, 2002)
  • J2SE 5.0 (September 30, 2004)
  • Java SE 6 (Dec 11, 2006)
  • Java SE 7 (July 28, 2011)
  • Java SE 8 (March 18, 2014)

Where is Java used?

At present, more than 3 billion devices are running with the help of Java. It is a programming language widely used in the IT industry.

JSP – This is a web technology, which is used in web applications. With the help of JSP, Java code is inserted into an HTML document. The JSP tag is used to insert Java code into the HTML tag. With its help, dynamic web pages are created.
PHP – You should know that this is a server-side scripting language. Java is also used in php.

Applets – This is also a type of complete Java program. which is added inside the web page. Because of the new features that appear in the web browser. The applets remain inside the HTML. Some online games are also examples of applets. The plugin is required to run applets in a web browser.

J2EE – Java 2 Enterprise Edition is a platform independent environment. With the help of web-based enterprise applications being created. The web application created by J2EE is used to share XML-based structured data between companies.

JavaBeans – This is the same as Visual Basic. New and advanced applications are created with the help of already existing components. In this, many items are kept in a single object called Bean.

Mobile – Despite all the above technologies, this language has a very good contribution to mobile devices. It has completely changed the game industries. All existing mobile industries use Java technology.

Java application types

web app

It means server-side web application development. Nowadays, Servlet, Jsp, Struts, and jsf are all used to build web applications.

standalone app

This means the desktop application and the mobile application. This is the SW we use every day. Example: – Media Player, Antivirus, Microsoft Office, Browsers. Standalone applications are easily created with the help of AWT and SWING.

projects application

Java is the only programming tool in building many enterprise applications. Because it provides a high level of security. EJB (Enterprise Java Bean) is used to create banking software, industrial application, accounting application, and all these types of enterprise applications.

Mobile Application

You should know about this that all the games and applications you run on your mobile phone are made from this language. All the applications in the Google Playstore are developed from Java programming.


Object Oriented – Everything in Java is object oriented. With the help of object model, application/program can be created with long code easily.
Platform Independent – This is a special language in which written programs can work in all operating systems. It is also called Cross Platform. But if we talk about C and C++, they are both platform based language.

  • Simple – you can understand it easily and you can write easily, this is its quality. That’s why it’s called Simple. If you have understood the basic concept of Oops, no one can stop you from becoming an expert in Java.
  • SAFE – It is very popular due to its security feature. Virus-free and tamper-free system software can be developed. Public key cryptography is used in authentication technology.
  • Architectural neutral – the code generated by the compiler is byte code. Code that you can run anywhere, on any operating system and processor. This is why it is called the architectural neutral. For this it is necessary to have JVM present in all systems.
  • Portable – Because of the standalone platform, it is also portable. Because both Java and assembler are written in ANSI C.
  • Durable – All programs written in it are robust. Strength does not mean iron strength. When the program is running, there is no error in it. Because compile-time and run-time error checking mechanism is used.
  • Multi-threaded – Because of these features, you can write programs that can perform multiple tasks. Meaning, there will be one app with which you can do all the tasks.
    High performance – Due to its just-in-time compilers, Java performs very well.
  • Distributed – Due to this nature, its state is preserved in the distributed environment of the Internet.
  • Dynamic – This is dynamic programming. It can adapt to any environment.

Various versions of Java Technology in Hindi

Java SE or Java Standard Edition provides you with those tools and APIs for creating Java SE – server applications, desktop applications, and applets. All programs written with the help of java SE work in all operating systems. Like Linux, Windows and Mac.

JEE – (java Enterprise Edition) Web Application Services, Component Model, Service Oriented Enterprise Architecture (SOA) के लिए मददार है.

JME – Java Micro Edition or JME This is a set of APIs. They are used to develop mobile applications, personal digital assistants (PDAs), TV Set-Top Box software, and gaming software. The interface of the mini version platform is very easy to use. Besides this is worth trusting. The security model provides various types of built-in network facilities with which you can run a Java-based application in it.

What is required to run Java in a computer

  1. First of all you have to download the Java SDK from this link
  2. Follow the instructions on the site.

Java editors for writing Java programs

You will need editors to write a Java program and you can use the editors below

  1. Notepad++ This is an editor in which you can easily write code. It is easy to fix the error as well as fix the missing bracket.
  2. Netbeans – This Java IDE is open source and free. Which you can download from this link
  3. Eclipse – This is also a Java IDE developed by the open source Eclipse community. You can download from this link

how to learn java

According to the demands of programming, if you know the basics of programming, then you should learn Java. Because you can earn money by developing software and creating an app in the play store. That’s why my advice is that you can learn easily by watching the video series from some educational site or from YouTube. Below is a list of some names of channels and websites where you can learn Java.


My final opinion on this article

This information is most useful for students with special needs. What is Java that you learned in today’s article (What is Java) . You also have answers to these questions, what is the use of this programming language.

History means you must have known the history of java as well. The most important question you always get asked is how to learn Java and its distinguishing features that come in a particular test. How many types of applications can you develop using the Java language? You have all the knowledge.

I hope you liked this article, how you liked it, you should tell below. If you want to ask any question now, definitely write in the comment box below. If you want to make any suggestion then you should definitely give it so that we can do something new for you. If you haven’t subscribed to our blog yet, do subscribe.

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