If your ambition is to become a competent programmer and developer, then regrettably, it might be tough for you to select one among so many programming languages. So which computer language is the finest from which it may be begun.

what is java


 It is one of the greatest computer languages ​​ever invented. In this post we will know what is Java? And how to learn Java language?


The most significant thing about Java Programming language is that it can be used to develop everything from web applications to desktop and mobile apps. Java was deliberately developed for use in the dispersed environment of the Internet. According to Oracle, Java runs on roughly 1 billion PCs and 3 billion phones globally.



It is based on C and C++ syntax. It is also a popular programming language because of this. Because the code created in it can run in any other platform.

 In the following episode, we will know in depth about what is Java Programming . Apart from this, the basics of Java language will also be presented. So let's first grasp what is Java.



what is Java -

Java is a General Purpose Programming Language, which was developed by Sun Microsystems. It is used to develop desktop and mobile apps. It is fully based on Object Oriented Programming. C++ and Java are quite comparable to one other, however Java has more advanced and simple features.



Java programming works on its aim of “write once, run anywhere” (WORA). That is, it has the potential to reuse the code once developed.

 This platform is also independent, that is, compiled java code may operate in all operating systems (OS) (OS). To accomplish this scenario, its software is compiled into Bytecode.



We store a Java file (which contains user-written code) under the .java extension. If you grasp the principles of OOP idea then it is extremely easy to learn. Java is also more secure in compared to other programming languages. 

It has developed as a popular programming language in the last several years on the basis of several of its greatest features.



Where is Java Programming Used?


Today Java is a widely used computer language. There are numerous such fields where it is employed. For example, it has been utilized in making from a scientific application to financial applications. The finest games like Minecraft have been created in Java itself. So let's examine where Java is used.



Web Application

It is used a lot in creating web apps. Through technologies such as Servlets, Struts, and JSPs, Java provides greater support for developing these online applications. Due to the simple and secure of this programming language, we are able to quickly build apps connected to many key sectors like: government, healthcare, insurance, education and military department.



Desktop Application


Every sort of desktop application may be readily built using it. Various types of APIs (Application Program Interface) such as Windowing Toolkit (AWT), Swing and JavaFX are utilized to develop them. It has gained the reputation of a superb programming language by many developers for building desktop application.



Mobile Application


Java Micro Edition is a popular cross-platform framework that is used to develop apps that operate on all mobile devices. Most of the phones currently support Android OS. In the same Java, Android software development kit and other kits are utilized for this. Due to this, it has officially acquired the title of finest programming language for mobile app development.



Enterprise Application


Because it is more secure and powerful than other languages, it is considered as the top choice in enterprise application development. Java enterprise edition is a wonderful platform that provides API and runtime environment for scripting and runtime enterprise apps. Apart from this, it has proven to be the backbone for many sorts of financial apps. Oracle reports that Java is being run in roughly 97 percent of corporate PCs.



Scientific Application


Most developers pick Java language to create a scientific application. The major reason for this is that Java is more safe, portable and maintainable. Also, it comes with stronger high-level concurrency facilities as compared to C and C++. Some of the most sophisticated programs like MATLAB have been written in it. Especially the coding of software tailored for scientific computations and mathematical operations is in it.


Gaming Application

Java is a superior language to build 2D games. There are various frameworks and engines accessible in this, which we may utilize with it. Although C, C # and C ++ are regarded superior than this for game creation. If you play Minecraft, its software is also developed in Java itself. So programmers do not have the same attitude on it for web development.



Embedded Systems


Embedded Systems is termed that component of a big system which performs a specialized duty in the system. This might be anything from a chip to sophisticated computers. For example, SIM cards, Blu-ray disk players, utility meters and televisions utilize this Embedded java technology. However, currently it is utilized to create many sorts of applications. But originally it was intended for embedded devices exclusively.



Big Data Technologies


If you do not know what Big Data is, then it is about processing large data and delivering insights to the organization. An open source framework (Hadoop) linked to Big Data has been written in it. That is why Java is advised for processing large data.



Apart from this, it is also utilized successfully in many various sectors. As an object-oriented programming, it is a superior language. OOP is a helpful expertise as it handles the complexity of real world applications extremely effectively. It is simple for a programmer to conceive from the terms of class and objects too.



History of java


In 1991, a group of developers from Sun Microsystems lead by James Gosling determined that they would build a programming language for consumer electronics.

 He dubbed it Green Project. The objective of this project was to develop a distributed system that would allow consumer electrical gadgets to interact with one other.



Although then C ++ was retained as the preferred choice. Now because CPU flexibility was a significant need for this technique. So he thought about expanding to C++. But they soon recognized that in spite of its increase it would not be adequate.


 C++ was a fairly difficult language then. After all this, a new programming language "Oak" was developed. It was called by James Gosling after the oak Oak as viewed from his office window.



Earlier it was titled Greentalk and then its file extension was .gt. In 1995 its name was changed to Oak and later it was renamed as Java. Because this term was already trademarked by Oak Technology. 

The goal behind designing such a language was to build a programming language that is simple, robust, portable, platform-independent, secure, multi-threaded, object-oriented, interpreted and dynamic.



By the way, Java was created for digital devices like set-top boxes and TVs etc. But owing to its outstanding capabilities, shortly it was also utilized for Internet development and WWW-based applications.

 To show this language better, he built a web browser Hotjava which is capable of executing tiny java programs (Applets) (Applets).



In 1995, when Sun Microsystems published the first Java Development Kit (JDK) and Hotjava. After which it came out as a popular programming language. It was purchased by Oracle in 2009. So far several Java versions have been published, let's have a look at their history.



Versions                                           Release Date

JDK Beta                                          1995

JDK 1.0                                            1996

JDK 1.1                                            1997

J2SE 1.2                                           1998

J2SE 1.3                                           2000

J2SE 1.4                                           2002

J2SE 5.0                                          2004

JAVA SE 6                                      2006

JAVA SE 7                                      2011

JAVA SE 8                                      2014

JAVA SE 9                                      2017

JAVA SE 10                                   2018



Components of the Java Programming Language


It is highly crucial for a developer to grasp these components of Java. Because only by knowing the architecture of programming, you can master it. Whenever we develop a program, it is in human readable language which is called source code.

 That is, we can understand that code but no computing equipment can read it. It can read just machine code or machine language.



So for the machine to understand the source code produced by us, it has to be translated into machine language. For this there is a comprehensive process of compilation and interpretation in Java. First the written code is translated into Bytecode, all this is done by using javac compiler.



After then the process of translating this code into machine readable language commences. In which these three components play a vital role:


Java Virtual Machine

JVM is the platform that offers a runtime environment to execute the Java application. This is a component of JRE. Which turns bytecode into machine code. To transform the bytecode into machine language, JVM will first load it, validate and then execute it.


Java Runtime Environment

JRE is a program that handles the Java class libraries, Java class loader and JVM. You may also call it a package of software, which is useful in the creation of Java applications. It is a component of JDK. Although you have to download it individually.



Java Development Kit

JDK is a set of tools with the assistance of which we are able to build Java based applications. Often programmers get confused between these two technologies JRE and JDK. Understand this, JDK offers us those tools so that we may develop the application. Whereas JRE offers such tools so that the program may be run. So JDK contains all other tools including JRE, loader, compiler, archiver etc. is included.



How to Learn Java 

how to learn java


There is no question that it is one of the most famous languages ​​today. There is a lot of need for Java developers in the business. The most essential point is that it is easy to learn since its syntax is straightforward in English.

 So if you have chosen that you want to learn Java, then you may start it by following the instructions offered by us.



#1 Where to learn? (Java Online Resources)

We have shared some sites with you below from where you may learn Java for free.


Free Java Tutorials (Links) (Links)


https://www.codecademy.com/learn/learn-java

https://www.javaworld.com/blog/java-101/

https://www.sololearn.com/Course/Java/

https://www.learnjavaonline.org/

https://www.tutorialspoint.com/java/

https://www.javatpoint.com/java-tutorial

https://www.w3schools.com/java/

https://www.guru99.com/java-tutorial.html

https://www.coursera.org/

https://www.hindilearn.in/tut/core-java/


Free YouTube Tutorials


Java Programming Tutorial (easytuts4you) (easytuts4you)

Core Java Programming (Geeky Shows) (Geeky Shows)

MySirg Java Tutorials

Java Tutorials For Beginners (Telusko) (Telusko)

Java Tutorial in Hindi (CodeWith Harry) (CodeWith Harry)



#2 Install Basic Tools

You have to install Java Development Kit on your PC. If the procedure is tough, then you may read the installation instructions from there. This is a package which includes JRE and several essential tools which enable us to create Java applications.


You may get Notepad++ for Java Editors. This is a basic text editor for developing Java applications.

Java IDE is a software tool that gives numerous capabilities to the programmer for software development. For this you can download one of Eclipse IDE and NetBeans IDE.


#3 Start Learning Java


The advice mentioned below will help you a lot in learning it.


1. To start programming language, first of all you should comprehend its foundations. Unless you grasp its foundations, you will not be able to progress further in it.



2. To develop coding abilities, you have to practice by taking out time daily. So keep practicing as much as you learn.



3. Take aid from other developers. You cannot learn everything by yourself, therefore remain in touch with a mentor who can address your difficulties.



4. Read blogs related to Java Programming. This will offer you more understanding about it, which will assist a lot in developing your talents.



5. It may take you several weeks, months and even years to perfect coding. For this, remain patient, slowly but one day you will certainly attain your objective.



Types of Java Programs


There are several sorts of Java applications, the major one being.


Stand-alone applications: These are apps that function offline and are meant to fulfill a specific purpose. They do not require any network connections to execute in the PC. These are run directly by the interpreter. 


These applications are not embedded with HTML and other languages. You must also occasionally utilize stand-alone apps developed in Java such as text editors and word processors.



Applet: is a Java program that may be embedded into HTML. Applets are used to make a web site more dynamic and interesting. These applications are performed with the aid of Java-enabled web browser. 


The <applet> or <object> element is used to embed the Applet program in the HTML page. Usually it gives certain such functionalities for web applications which cannot be done by HTML.



Servlets: This is a Java class that is used to enhance or increase the capabilities of servers. Although Servlets may react to any form of request, they are typically used to expand applications hosted by web servers. 

Apart from this, it is also a web component which is put on the server to build dynamic web pages.


What is Core Java


Actually there is no definition of Core Java anywhere since it is a phrase that Sun Microsystems adopted to better characterize Java Standard Edition. This is the most basic version, because it laid the foundation of the rest of the variants. In plain terms, it refers to the subset of Java SE technology.


It comprises general purpose APIs and particular purpose APIs of numerous verities. Because this is the standard edition, with this you will get to see the basic foundations of the language. 

That's why when you hear Core Java, do not consider it unusual, although it was the initial version of Java. After this numerous Java versions were produced, including:

  • Java Enterprise Edition
  • Java Micro Edition
  • Java Card
  • JavaFX
  • PersonalJava

Features of Java 

It is a commonly used programming language nowadays. It has become a popular language only on the basis of its greatest qualities. So let's go through some of its characteristics.



1) The first aspect is that Java is a simple language. It is fairly easy to create, build and debug its program as compared to other languages.



2) It is based on object-oriented programming. This implies that everything in it is viewed as an object.



3) Another benefit is that it is Platform Independent. That means, its application can be run in any platform.



4) It is considered as the most secure language. By which developers are able to build a virus free system.



5) Due to good memory management, automated garbage collection and avoiding numerous security concerns, it is classified as Robust.



6) Its Architecture is neutral. That is, it is easy to read the java program in any computer.



7) It is entirely portable i.e. its bytecode may be transported in any platform.



8) It has the characteristic of multi-threading. That is, via this you may create such programs which will be able to execute multi task at a time.



9) It is distributed language. With which we may develop applications that operate on computer networks.



10) Java is an established language, therefore it is more reliable and predictable. Java class library offers us the facility of cross-platform development.



11) It has a huge amount of active user community and assistance accessible.



12) Due to its outstanding tools, it gives an integrated development environment to the programmers.



13) It contains a vast selection of open source libraries. So that it may be utilized everywhere.



14) A nice benefit is that Java language is totally free, that is, you may utilize all its capabilities.



Conclusion

The primary theme of this essay was What is Java and How to Learn Java Language? Under which we attempted to explain to you the basics of this computer language. A programmer can learn any programming language only if he pays attention to the foundations of the language. 

If you have read the text carefully then it will be easy for you to select a programming language.



So ideally, throughout this post you must have understood properly what is Java? If you have any query or suggestion relating to this, please tell us by commenting below. If you wish, you can also share it with your peers on social media like Facebook, Whatsapp and Twitter.