What is Java? : How to learn java fast? Complete Guide

Hello, friends today we will know What is Java? If you are interested in computer science. You must have heard the name of this language at one time or another and tried to know about it.

So through this post of today, we will tell you what is java, features of this language and how to teach this?

So let’s know.

What is Java ?

Java is an object-oriented programming language. Also called high-level language. Because it can be easily read and written by humans this language is multiple platforms and distributed programming language.

Which uses console application, web application, mobile application, etc. Used to make. Apart from this language is also used to develop software or app for almost all devices.

This language is a simpler, better, faster, and secure programming language than other programming languages. Which is currently used not only in computers but also in mobile phones, tablets, electronic devices like TV, washing machine, AC.

Nowadays online shopping, online banking, online form all this is done with the help of this language only.

Currently, almost all mobile companies support java. Google has developed an open-source operating system named android for the device connecting this language to Linux. Which has become very famous in today’s time?

Almost all big companies or mobiles do moblie device, tablets, smart watche etc. for android platform. The java language web application like website also provides the facility to create a blog. And also helps in making apps for mobile as well.

In today’s time, all the website pages run on javascript, HTML CSS, PHP. android devises Many such applications have been made for this. This application, written in this language, has been created using the software development kit or SDK of android. history of java?

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History of java language

This language is a computer-based programming language. Which was developed by James Gosling and all his sun microsystem in 1991? James Gosling is considered the main developer of this language.

He had only one principle behind making this language. write once run anywhere which meant The language will be written once and will be used everywhere, the ISRO programming developed by James Gosling, and his team was named Oak.

After which it was renamed as java in 1995. Java team members are also called green teams, they started a project to develop a language. Which digital device helps in developing the application for this.

This language was primarily developed to make consumers electronic devices such as tv Sept a box VCR software but it is the best programming language for Internet programming James Gosling

First named this program greentalk. After this, it was changed to Oak. This name was already registered by Oak Technology. Hence it was changed again to java.

The most important and popular feature of java is that the language platform is independent. This means that the programming language is not designed for any particular hardware or operating system.

Therefore programs created on this language can be run on any system. This unique feature of Java still makes this language the most popular language.

Java all versions

The first version of this language was released in JDK 1.0 (23-January-1996). After that many versions were developed and released like –


J2SE 1.2 8 Dec-1998

JDK 1.1 19-Feb-1997

J2SE 1. 3 8-May- 2000

J2SE 1 .4 6-Feb-2002

J2SE 5.0 30 Sep-2004

Java SE 6 11-Dec-2006


This language SE 7 28-July-2011 Currently the Java version is the latest version of Java SE 8 which was released on (18 March 2014).

It is an object-oriented language based on c and c ++ but this language has been further simplified and improved. So that the error of programming features can be removed. This language source code file whose extension is this language. Them in byte code format with the help of the compiler is generated.

And then the java interpreter executes it. The compile this language code runs on all computers with the help of this language virtual machine JVM. JVM is a virtual machine that provides a run time environment. Where the java program is run.

All java computer programs run. All of them are already JVM installed, so the source code of this language runs on all platform computers.

Types of java

This language is actually a very large programming language. So the sun microsystem gave it many
types I have divided. So that whatever programmer wants to develop the software associated with that category. They only need to know about this language related to the same category.

Java is basically divided into 3 types .
(1) JAVA Micro Edition ( J2ME )
(2) JAVA Standard Edition ( J2SE )
(3) JAVA Enterprise Edition ( J2EE )

Java all features

(1) simple language

This language is a very easy language because it contains syntaxes just like c ++. Which can be easily taught. But like c ++, operator overloading and header file are not used in it, which makes it even easier.

(2) object oriented

This language is a pure object-oriented programming language (OOPS). That is, procedures are not used in this. Rather it is just a language based on the object. This follows the concept of this language (OOPS) which simplifies the work of software development and maintenance.

(3) platform independent

This language is a platform-independent language, meaning it can be run on every platform.
Example – programs are written in android, windows, Linux, and mac this language can be run in any operating system.
Like if you have written the Java program in windows os, then we can run it easily in Linux is also.

(4) secure

Another great feature of this language is that it is a secure language. This language is the most secure because these programs run in the Java run time environment. Before generating the machine code, the program detects the error by running some tests on the JVM. This language virus is free so that programs are protected.

(5) portable

This language is a portable language because Java’s source code is converted to byte code with the help of a compiler. This byte code runs in every system, so it can be easily obtained.

(6) Robust

Robust means, any program made in strong this language can work in a different environment without crashing. Its programs never crash. Whatever errors are found in this language? It can be solved by searching easily. This language is a Robust language for all these reasons.

(7) multi threaded

This language is a multi-threaded language. This means that the big program in this language is divided into small subprograms. And these subprograms are executed sequentially. Similarly, this language can perform multiple tasks simultaneously. This feature makes Java fast and interactive. This feature is used in multimedia and web applications.

(8) distributed

Java is a distributed language which means. These language programs are made to run on the Internet. In Java, we can create a distributed application, these are those applications, which are distributed on different networks. But together they perform the task. The HTTP and FTP protocols are used in this language. So that the data on the Internet is easily accessed.

How to learn java

You can learn this language online very easily. Here you can learn java from beginner to advance. These are very popular sites. Where you can learn java tutorials.

Conclusion

Friends, in today’s post we have learned what java is, the feature of this language, history of this language, and how to learn java, I hope you all have understood well. Friends this language is a very simple and secure language. Which is being used today in 3 billion devices.

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