What is Java?

Java is an Object-Oriented programming language designed for the development of software for patron digital devices, together with TVs, VCRs, toasters, and so forth. Java is a platform impartial language, which means that that it isn’t always tied to any precise hardware or working machine. It ensures customers to ‘write once, run anywhere.’ The Java language is supported with the aid of nearly every operating device, including Sun Solaris, RedHat, Windows, and so forth. Today millions of devices running on java JDK. Android is the simplest example of the Java language. We can easily installed open JDK on Linux, Windows and MAC operating systems.

How to Run Java Program on Windows

For Java programming, first, we need to install JDK in our system or PC. Open JDK is easily available and everyone can install on his PC without any charges.

After installing follow these steps and compile and run your Java file:

  • Press the start button and open the command prompt on your PC, and write the directory path where java file is. ( Example hello.java )
  • After code writing first compile your file using “ javac [ filename.java ] ” this command. ( During the compilation JDK detect the errors in your file, if no error found than on command prompt new line will appear otherwise errors will show on the command prompt)
  • Now your executable file is ready for running. Write “ [ java filename ] ” to run your program.
  • Your code result will be printed on the command prompt or GUI will appear on the window.

How to Compile and Run Java Program on Linux Flavors ( Fedora, Ubuntu, Mint etc.)

Let’s the code in java file is given below:

Class helloword{

                Static int main ( int *arg, char **agrv ) {

               System.out.println ( “ Hello World ” ) ;

Return 0;



How to compile and run it.

  • Compile your “ Java ” program ( “ javac hello.java ” )
  • Find and correct the errors from your program.
  • Now run your executable file that builds automatically after compiling

(Simple command: “ java hello ” ).


                Hello World

How to Run Java Program in Eclipse

Follow steps to run a java program in Eclipse:

  • Create a new java project.
  • Create a class name or file name File > New > Class.
  • Enter the name of the class and path of package [ optional ].
  • Write the code in your created file. The code is given above and save this code.
  • Now simply press the button for compiling and running the java code. The button is given on image below.

How do I run a Java program in notepad?

How to Run Java Program in CMD Using Notepad
  1. Open the notepad and write a Java program into it.
  2. Save the Java program by using the class name followed by . java extension.
  3. Open the CMD, type the commands and run the Java program.

Can Java run on any machine?

To sum it up, Java, when compiled, creates a bytecode (. class file), which can be run in any machine which supports JVM. So once compiled it doesn’t require re-compilation at every machine it runs, JVM converts the bytecode to be understood by the underlying hardware.

What operating system does Java run on?

An overview of the software development process. Because the Java VM is available on many different operating systems, the same . class files are capable of running on Microsoft Windows, the Solaris™ Operating System (Solaris OS), Linux, or Mac OS.

Does Windows 10 need Java?

You only need Java if an app requires it. The app will prompt you. So, yes, you can uninstall it and it’s likely safer if you do.

Is Java safe to install?

You can download java from http://java.com/en/. The legitimate java plug-in is safe to install, but some websites use fake pop-up windows to trick you into downloading software that isn’t actually java.

How can I get Java for free?

There is no legal way to obtain a free, full copy of the Java edition of Minecraft; if you want the full version of Minecraft, you’ll have to buy it.

How do I download Java for free full version?

Go to minecraft.net and click on Get Minecraft Java Edition. Now, select Computer from the list of available platforms. You will be given options to select between Windows, macOS, and Linux.

Is Java 1.8 the same as Java 8?

javac -source 1.8 (is an alias for javac -source 8 ) java.

Can bedrock play with Java?

The Bedrock Edition allows for cross-platform multiplayer on consoles, mobile devices, and Windows 10. The Java Edition is only for PC, and it will only allow you to play with other Java players, which is a lot more limiting.

How do I claim my free Bedrock 2021?

How to redeem your free copy of Minecraft Bedrock Edition?
  1. Step 1: Log in to your account. Go to Mojang Website.
  2. Step 2: Clain a free copy. Now in the purchase tab, scroll down until you see “Minecraft: Windows 10 Edition Beta.”
  3. Step 3: Final Step. Now you will be navigated to another page of Microsoft.

Can you get Minecraft bedrock for free if you have Java 2021?

Windows 10 has the legacy Java Edition as well as the modern Bedrock Edition. If you bought the Java Edition before October 19, 2018, you can redeem a free copy of the Bedrock Edition. You can also buy the Windows 10 edition directly from Microsoft for $20.

Is Windows 10 Minecraft free if you have Java?

Microsoft has long offered a free upgrade to the Windows 10 Edition, and anyone who bought the Java Edition before Oct. 19, 2018, is entitled to that upgrade. Redeeming your free Minecraft copy is easy — as long as you remember your Mojang login from a thousand years ago.