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Java is one of the most popular programming languages, and it is used at almost every area of software

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development.

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By definition, Java is an object oriented platform, independent programming language.

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I think it needs some explanation.

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So object oriented, it means that it uses objects to model the desired tasks.

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Objects have properties and behaviors.

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It can be a person, a superhero, a plant, an animal, a machine or anything else.

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So let's take a car as an example.

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It has properties like color, horsepower production here, and it also have behaviors like start the

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engines, stop the engine, lights on, lights off.

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By using water and other cars behavior, they can also interact with each other.

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It's an interesting one and not quite sure what topic.

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I will tell you more about this and the class action.

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So what platform independent means platform independent means that the same code can run on any device

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so you don't have to write code for different operating systems.

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It doesn't matter whether it is Mac OS, Windows or Linux.

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The code written on Mac runs the same way with the same results on any other operating systems.

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So write once, run everywhere.

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Java has other very important features like interpreted, which means that Java code you write is converted

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to another format byte code which can be easily translated into native machine code.

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So it gives Java high performance.

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Java is also concurrent, which means that you can execute many statements asynchronously instead of

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sequential execution.

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That's how a morning routine works with a sequential and a concurrent system in a sequential system,

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the actions are executed one after another.

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So first you wake up, second make your bed, then brush your teeth.

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After that, you make a tea and eat breakfast.

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Next, prepare lunch and finally go to work in a concurrent system.

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The first two steps are the same, but after that you start brushing your teeth and while you're brushing

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your teeth, you start making a tea, you start boiling the water so you can save time.

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With that, the steps coming next are the same and in the same order.

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So concurrency is a kind of multitasking.

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The last point to mention here is that Java is secure, which means its memory segments are not accessible

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and it has built in security code base, which helps you to build more secure projects.

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OK, and which areas Java is used.

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As I mentioned before, Java is used almost everywhere.

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First, and probably the most common usage is involved.

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Development companies like Google, Amazon, Netflix, Twitter, YouTube, bookings, dot com, eBay

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use Java.

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It is also used in desktop app development like the original Minecraft room, Screwtape Integrated Storm

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or even PyCon.

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The most popular Python programming tool was also written in Java.

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Another popular segment as mobile development Android is written in Java, also the apps games on Android.

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And the last category is the combination of the previous ones, the enterprise application.

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Most of the Fortune 500 companies are using Java, for example, SAP, Apple or GE Healthcare.

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When you are creating an enterprise application, the most important thing to keep in mind is that you

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don't want to have different code for mobile, desktop and web because it would cost a lot of money

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and a lot of time to finish it, also to maintain it or add new features to different code bases.

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So these are the main areas where Java is used C in the next video.