Hello friends! Today I want to explain to you why do you need java technology on a computer and give clear examples of its use by web application developers, we will also learn how to install the Java platform on Windows 8, if you don’t know one secret, then you won’t install Java on eight. To make it clear to you what we are talking about, I am publishing these three letters that came to us in the mail.

Why do you need Java?

Friends, undoubtedly you need Java technology, but only the latest version and downloaded from the official website www.java.com/ru. Why? I'll show you a simple example and explain everything.

What is Java technology?

Java is object-oriented programming language developed by Sun Microsystems in 1995. A huge number of websites, games and various applications contain various elements developed using Java.

For example, you have installed the operating system and decided to install the driver on your video card, to do this, go to the video card website, for example http://www.nvidia.ru, click Drivers. We don’t want to search for our drivers manually and choose

Option 2: Automatically find NVIDIA drivers and press the button Graphics drivers

And we get this answer:

NVIDIA Smart Scan requires the latest version of Java software.Click on the "Java" icon to install.

If you click on the Java button, you will be redirected to the website www.java.com/ru and to install the Java platform for yourself you just need to click on the button Download Java for free.

The same situation can happen with many online games, if you want to play this online game,

The game will immediately redirect you to the Java platform installation page.

Here, friends, is a simple example of use. object-oriented programming language Java on the website of your video card and online games, if we do not install the Java platform in our operating system or have an outdated version of Java, we will not be able to automatically select drivers for the video card and will not be able to play. There are many such examples that can be given. I think that I answered your question why you need Java.

Yes, just recently virus writers found a vulnerability in updates to the Java platform and many users were affected; to the credit of Java developer Sun Microsystems, a patch was released very quickly and to this day this has not happened again. By the way, such a story can happen with any application.

How to check if the latest version of the Java platform is installed on your computer

Go to the website www.java.com/ru and click on the button Do I have Java software installed on my computer??

Check your Java version.

Eloquently. Java is not installed at all.

Let's install Java. Return to the main page www.java.com/ru and click

Why do you need a Java program on your computer?

A technician came to me to set up my computer. I installed Windows 7, a bunch of drivers and a dozen standard programs, obviously. So I look at the list of programs, and I seem to understand everything why they are needed. But I don’t know why I need a Java program on my computer. Is it something systemic, like a driver? Thanks for the answer.

Asuna | December 23, 2015, 6:56 pm
There are many applications and websites that do not work without Java installed.

Zhenya Vaidberg | February 19, 2015, 11:00
Java is such a programming language (object-oriented, if that says anything). The beauty of it is that Java applications can run on any platform and computer architecture with the help of a so-called Java virtual machine. Actually, when you download Java, you download this particular virtual machine to your computer, which can interpret the code.

Without installing this distribution, many of the programs, for example, OpenOffice, Minecraft, etc., simply will not work. Even the nVidia driver wrapper uses it. Therefore, it is necessary to install it.

Eugene | 16 February 2015, 09:52
Java is a special language for writing programs. For these programs to work, you need to install Java on your computer (one for all Java programs).

This distribution can be installed on a system, which is better (less hassle) and portable. There are programs in almost every category in Java. If I'm not mistaken, they can work on a computer with any OS (not just Windows). And even on mobile devices.

Often, the user sees installed programs on his PC or smartphone and does not know what they are for. The same is true with the Java program. However, many users still wonder what a Java program is for, in order to understand what functions are assigned to it and use them to the maximum.

Java technology

Java is a special programming language in which video games and numerous applications are written. Thanks to Java software, people can play online games, view 3D images, calculate interest on loans, and communicate with people around the world. Applications written in this programming language that can be accessed directly from the browser are called "applets". Many large companies use Java applets for e-commerce systems and intranet applications. There are currently over 9 million software developers working with the Java platform. It is used in all major industry segments. It is especially widely used in computers and networks. This popularity is due to the efficiency, versatility, portability of platforms and security of the technology, which makes it the best choice for network computing. To understand why Java is needed, just look at your PC or mobile phone. Only through this program can you play various games, since most of them were written on its platform. This program is also used in all Blu-ray players. This technology is used to operate set-top boxes, lottery terminals, printers, web cameras, medical devices, car navigation systems, parking payment machines, etc.

Advantages of the Java Program

The main advantage of Java is that on its platform you can write software that can later be run on almost any other platform. In addition, it allows you to create programs that run in a web browser and have access to web services. As a rule, when asked by the user, is Java needed? You can answer with an example that without this technology it would be impossible to buy anything on the Internet; many surveys are developed on its platform. And without this technology one could forget about multifunctional and effective applications for mobile phones. Java has left Apple and Android far behind as it is used in 3 billion cell phones. Now you know everything about the Java program, why this technology is needed, and how it can be successfully used.

If you are a beginner and just starting to learn Java, you have probably wondered where exactly is Java used? You don't see many games written in Java, except for Minecraft, desktop utilities like Adobe Acrobat, Microsoft Office are not written in Java, neither is your operating system, be it Linux or Windows, so where is use Java? Does it have any real use at all? Well, you are not alone, many programmers who have just embarked on the IT path or are already confident specialists ask this question. Meanwhile, you can find out where Java is used by simply installing Java on your computer, Oracle claims that over 3 billion devices run Java, quite a large number, right? Most large companies use Java in one way or another. Many back-end applications processing tens of millions of requests per day are written in Java, and high-frequency trading applications are also written in Java, such as LMAX's trading applications using their innovative multi-threaded parallel Disruptor framework. In this article, we'll take a closer look at what projects use Java, what areas does it dominate, and where is it even applicable in the real world?

This universal programming language is used by companies of various sizes in their corporate server software. Applications written in Java can be found everywhere: in a smart kettle, your Android smartphone, computer or Tesla car. And since Java is everywhere, finding a job knowing this language is quite easy.
Why do you need to learn Java?
It's simple: Java is a universal language used by hundreds of thousands of companies. So if you know Java, it's pretty easy to find an interesting job. Java is quite easy to learn, so it is suitable for those who are learning programming for the first time. This language works on all platforms, and although it is constantly updated and modernized, old Java code is compatible with new one.

Real Java Applications

There are many applications for Java, from e-commerce sites to Android applications, from scientific to financial applications such as trading systems, from games such as Minecraft to desktop software such as Eclipse, Netbeans and IntelliJ, from open source frameworks to J2ME applications, etc. Let's take a closer look at each of them.

Android applications

If you want to see where Java is used, you don't have to look far. Just take your Android phone, absolutely all applications are written in Java, using Google and Android APIs, which are similar to the JDK. A couple of years ago, Android provided the necessary capabilities, thanks to which today many Java programmers are Android developers. By the way, Android uses a different JVM and a different and different layout method, but the code is still written in Java.

Server Applications in Financial Services

Java is widely used in the financial sector. Many global investment banks, such as Goldman Sachs, Citigroup, Barclays, Standard Charted and others use Java to write front-end and back-end office electronic systems, regulatory and confirmation systems, data processing projects and some others. Java is primarily used to write server applications, most of them without any user interface, that receive data from one server, process it and send it on. Java Swing was also popular for creating thick-client interfaces, but now C# is quickly taking over the market in this area, and Swing is already running out of steam.

Web applications

Java is also widely used in e-commerce and web applications. A huge number of RESTful services have been created using Spring MVC, Struts 2.0 and similar frameworks. Even simple applications based on Servlet, JSP and Struts are quite popular in various government projects. Many web applications of government, health, insurance, education, defense and some other departments are written in Java.

Software

Many useful software and development tools are written and developed in Java, such as Eclipse, IntelliJ Idea and Netbeans IDE. It seems to me that this is also the most used application written in Java. There was a time when Swing was very popular for creating "fat clients", mainly in the financial sector. Today, Java FX is gaining more and more popularity, but it is still not a replacement for Swing, and C# has almost completely displaced Swing from the financial field.

Trading Applications

Third-party trading applications, which are also part of the larger financial services industry, also use Java. Popular applications such as Murex, which are used in many banks, are written in Java.

J2ME applications

Despite the fact that the emergence of iOS and Android has practically destroyed the J2ME market, there are still a huge number of cheap phones from Nokia and Samsung using J2ME in the world. There was a time when almost all games and applications available on Android were written using MIDP and CLDC, which are part of the J2ME platform. J2ME is still popular in media such as Blu-ray, cards and set-top boxes. One of the reasons WhatsApp is so popular is that it is also available on J2ME.

Embedded Systems

Java is also extensive in the field of embedded systems. You can see what the platform is capable of, you only need 130 KB to use Java (on smart cards and sensors). Java was originally developed for embedded systems. In fact, this area was part of Java's initial "write once, run anywhere" campaign, and it appears to be paying off.

Big Data

Hadoop and other big data technologies use Java in one way or another, such as Hbase and Accumulo from Apache, or ElasticSearch. Although Java does not dominate this area, since there are technologies like MongoDB, which are written in C++. Java has the potential to gain a larger share of this growing space if Hadoop or ElasticSearch expands.

High Frequency Trading Spaces

Java has improved its performance and with modern JITs it is able to provide C++ level performance. For this reason, Java is also popular for writing high-performance systems, because although the performance is inferior in comparison with the native language, you can sacrifice security, portability and reliability for greater speed and it only takes one inexperienced C++ programmer to make the application slow and unreliable .

Scientific applications

These days, Java is often the default choice for scientific applications, including natural language processing. The main reason is that Java is more secure, mobile and reliable and has better parallelization tools than C++ and other languages. In the nineties, Java was quite popular on the Internet thanks to applets, but over the years, applets have lost their popularity, mainly due to various security issues. Desktop Java and applets are pretty much dead these days. Java is the default darling of the software industry, and is widely used in finance, investment banking, and e-commerce. Everyone who learns Java has a bright future. Java 8 has only strengthened the belief that Java will continue to dominate the development landscape for years to come. In the comments to the article, they questioned the real use of Java, due to the abundance of financial examples in the article itself, and wondered whether Java has a future in desktop development, and whether it would be better to learn C#? Here are some counterarguments: There is no point for a Java developer to learn C# as they are similar language but just for different technical stack, instead you should learn Python, Ruby or Perl. Scripting language are very good for small tasks. There is no point for a Java developer to learn C# since they are similar languages ​​but for different areas. Instead, it's better to learn Python, Ruby or Perl. Scripting languages ​​are good for small tasks. Java is actually used EVERYWHERE, it"s in your phone, it"s in your cable"s settop box, it"s in your credit card, it"s on the server which you are currently connected to, it"s on the browser you are currently using it. Java is the most ubiquitous language ever created. Java is actually used everywhere, it's on your phone, on your set-top box, on your credit card, on the server you're currently connected to, in the browser you're currently using. Java is the most ubiquitous language ever created. Also in the comments are links to a couple of articles, namely: The Second Coming of Java and Employers Want Java Knowledge Like Nothing Else. If they express their desires, we can translate them too. P.S.: I ask you to evaluate the translation, make comments, point out errors, because I have a desire to translate and want everything to be at the appropriate level. Translation and revision of the article

Java is a programming language and computing platform that was first released by Sun Microsystems in 1995. There are many applications and websites that do not work without Java installed, and the number of such websites and applications is increasing every day. Java is fast, highly secure, and reliable. From laptops to data centers, from game consoles to scientific supercomputers, from cell phones to the Internet, Java is everywhere!

Is it possible to download Java for free?

Yes, Java is free to download. Download the latest version from the website.

If you are developing an embedded or consumer device and want to use Java technologies in it, contact Oracle to learn more about integrating Java into various types of devices.

Why is it necessary to upgrade to the latest version of Java?

The latest version of Java contains important improvements that improve the performance, stability, and security of Java applications running on your computer. Installing this free update package will ensure that the Java applications installed on your computer run safely and efficiently.

TECHNICAL DETAILS

I've heard the terms Java Virtual Machine and JVM. Is this Java software?

The Java Virtual Machine is only one aspect of Java software that is used when communicating over the Internet. The Java Virtual Machine is built directly into the Java software download and is used to support running Java applications.