Java Download: A Guide for Beginners
If you are interested in learning how to program in one of the most popular and versatile languages in the world, you will need to download and install Java on your computer. In this article, we will show you how to do that step by step for different operating systems.
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What is Java?
Java is a programming language and a software platform that runs on billions of devices, including desktops, laptops, smartphones, tablets, gaming consoles, smart TVs, and many others.
Java was created in 1995 by James Gosling at Sun Microsystems (. Java was created in 1995 by James Gosling at Sun Microsystems (now part of Oracle Corporation) as a simple, portable, and object-oriented language that could run on any device with a Java virtual machine (JVM) . Since then, Java has evolved into a powerful and complex language that supports multiple paradigms, such as functional, concurrent, and distributed programming.
Some of the features and benefits of Java are:
It is platform-independent, meaning that it can run on any operating system that has a JVM installed, without requiring any changes in the source code.
It is robust, meaning that it has built-in mechanisms to handle errors and exceptions, and to prevent memory leaks and security breaches.
It is scalable, meaning that it can handle large and complex applications with high performance and efficiency.
It is multithreaded, meaning that it can execute multiple tasks simultaneously using threads, which are units of execution within a program.
It is network-friendly, meaning that it has a rich set of libraries and tools to support web development, data processing, and communication protocols.
With Java, you can create various types of applications, such as desktop applications, web applications, mobile applications, embedded systems, games, and more. Java is also widely used in the fields of education, enterprise, science, and engineering.
How to Download Java for Windows
If you are using a Windows operating system, you will need to download and install Java on your computer to run Java applications. Here are the steps to do that:
Check if Java Is Installed
Before you download Java, you may want to check if you already have it installed on your computer. To do that, you can use the command prompt. Here is how:
Open the command prompt by pressing the Windows key + R and typing cmd in the Run box.
Type java -version and press Enter. If you see a message like this:
C:\Users\user>java -version java version "17" Java(TM) SE Runtime Environment (build 17+35-2724) Java HotSpot(TM) 64-Bit Server VM (build 17+35-2724, mixed mode, sharing)
That means you have Java installed on your computer. You can skip the next step and go to the installation step. If you see a message like this:
C:\Users\user>java -version 'java' is not recognized as an internal or external command, operable program or batch file.
That means you do not have Java installed on your computer. You will need to download it from the official website.
Download Java for Windows 10
To download Java for Windows 10, you will need to visit the official Java website and choose the version that suits your needs. There are two main types of Java software that you can download: JDK (Java Development Kit) and JRE (Java Runtime Environment).
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JDK is a software package that contains the tools and libraries that you need to develop and run Java applications. It includes JRE, which is a software package that contains the components that you need to run Java applications. If you are planning to write your own Java programs or use an IDE (Integrated Development Environment) such as Eclipse or IntelliJ IDEA, you will need JDK.
JRE is a software package that contains the components that you need to run Java applications that are already written by someone else. If you are only planning to run Java applications that are already written by someone else or use a web browser that supports Java applets, you will need JRE.
To download JDK or JRE for Windows 10, follow these steps:
Go to the official Java website and click on the Download button under JDK or JRE, depending on your choice.
You will be redirected to another page where you will see a table with different versions of JDK or JRE for different platforms. Choose the one that matches your operating system (Windows x64) and click on the Download button next to it.
You will be asked to accept the license agreement before downloading. Check the box that says "I accept..." and click on the Download button again.
You will see a file with an .exe extension being downloaded to your computer. Save it in a location where you can easily find it later You will see a file with an .exe extension being downloaded to your computer. Save it in a location where you can easily find it later.
Install Java on Windows 10
To install Java on Windows 10, you will need to run the .exe file that you downloaded in the previous step. Here are the steps to do that:
Locate the .exe file that you downloaded and double-click on it to launch the installation wizard.
You will see a welcome screen that asks you to choose the installation folder for Java. You can either accept the default location or browse to a different one. Click on the Next button to continue.
You will see a progress bar that shows the installation process. Wait until it is completed and click on the Close button to finish.
You have successfully installed Java on your computer. However, you may need to set some environmental variables in Java to make it work properly.
Set Environmental Variables in Java
Environmental variables are settings that tell your operating system where to find certain files or programs. In Java, you may need to set two environmental variables: JAVA_HOME and PATH.
JAVA_HOME is a variable that tells your operating system where to find the JDK or JRE installation folder. PATH is a variable that tells your operating system where to find the executable files of Java, such as java.exe and javac.exe.
To set these variables on Windows 10, follow these steps:
Open the Control Panel by clicking on the Start button and typing Control Panel in the search box.
Click on System and Security and then click on System.
Click on Advanced system settings on the left side of the window.
Click on the Environment Variables button at the bottom of the window.
In the System variables section, click on the New button to create a new variable.
In the Variable name field, type JAVA_HOME. In the Variable value field, type or browse to the JDK or JRE installation folder (for example, C:\Program Files\Java\jdk-17). Click on OK to save the variable.
In the same section, find the variable named PATH and click on Edit. In the Variable value field, add a semicolon (;) at the end of the existing value and then type or paste %JAVA_HOME%\bin. Click on OK to save the variable.
Click on OK to close all windows and apply the changes.
You have successfully set the environmental variables in Java. You can verify them by opening a new command prompt and typing echo %JAVA_HOME% and echo %PATH%. You should see the values that you entered in the previous steps.
Test the Java Installation
To test if Java is working properly on your computer, you can write and run a simple Java program. Here are the steps to do that:
Create a new folder on your desktop and name it TestJava.
Open a text editor such as Notepad and type or copy the following code:
public class TestJava public static void main(String[] args) System.out.println("Hello, world!");
This is a basic Java program that prints "Hello, world!" to the console.
Save the file as TestJava.java in the TestJava folder. Make sure that you use the .java extension and not .txt.
Open a command prompt and navigate to the TestJava folder by typing cd Desktop\TestJava and pressing Enter.
Type javac TestJava.java and press Enter. This will compile your Java program and create a file called TestJava.class in the same folder.
Type java TestJava and press Enter. This will run your Java program and display "Hello, world!" in the console.
If you see this output, congratulations! You have successfully installed and tested Java on your computer. If you see any errors, check your code, file name, and environmental variables for any mistakes.
How to Download Java for Mac
If you are using a Mac operating system, you will need to download and install Java on your computer to run Java applications. Here are the steps to do that:
Check if Java Is Installed
Before you download Java, you may want to check if you already have it installed on your computer. To do that, you can use To do that, you can use the terminal. Here is how:
Open the terminal by pressing Command + Space and typing terminal in the Spotlight search box.
Type java -version and press Enter. If you see a message like this:
$ java -version java version "17" Java(TM) SE Runtime Environment (build 17+35-2724) Java HotSpot(TM) 64-Bit Server VM (build 17+35-2724, mixed mode, sharing)
That means you have Java installed on your computer. You can skip the next step and go to the installation step. If you see a message like this:
$ java -version No Java runtime present, requesting install.
That means you do not have Java installed on your computer. You will need to download it from the official website.
Download Java for Mac
To download Java for Mac, you will need to visit the official Java website and choose the version that suits your needs. There are two main types of Java software that you can download: JDK (Java Development Kit) and JRE (Java Runtime Environment).
JDK is a software package that contains the tools and libraries that you need to develop and run Java applications. It includes JRE, which is a software package that contains the components that you need to run Java applications. If you are planning to write your own Java programs or use an IDE (Integrated Development Environment) such as Eclipse or IntelliJ IDEA, you will need JDK.
JRE is a software package that contains the components that you need to run Java applications that are already written by someone else. If you are only planning to run Java applications that are already written by someone else or use a web browser that supports Java applets, you will need JRE.
To download JDK or JRE for Mac, follow these steps:
Go to the official Java website and click on the Download button under JDK or JRE, depending on your choice.
You will be redirected to another page where you will see a table with different versions of JDK or JRE for different platforms. Choose the one that matches your operating system (macOS x64) and click on the Download button next to it.
You will be asked to accept the license agreement before downloading. Check the box that says "I accept..." and click on the Download button again.
You will see a file with a .dmg extension being downloaded to your computer. Save it in a location where you can easily find it later.
Install Java on Mac
To install Java on Mac, you will need to run the .dmg file that you downloaded in the previous step. Here are the steps to do that:
Locate the .dmg file that you downloaded and double-click on it to launch the installation wizard.
You will see a window that shows a Java icon and an Applications folder icon. Drag and drop the Java icon onto the Applications folder icon to copy it there.
You have successfully installed Java on your computer. However, you may need to set some environmental variables in Java to make it work properly.
Set Environmental Variables in Java
Environmental variables are settings that tell your operating system where to find certain files or programs. In Java, you may need to set two environmental variables: JAVA_HOME and PATH.
JAVA_HOME is a variable that tells your operating system where to find the JDK or JRE installation folder. PATH is a variable that tells your operating system where to find the executable files of Java, such as java and javac.
To set these variables on Mac, follow these steps:
Open the terminal by pressing Command + Space and typing terminal in the Spotlight search box.
Type nano /.bash_profile and press Enter. This will open a text editor where you can edit your bash profile, which is a file that contains commands and settings for your terminal session.
Type or paste the following lines at the end of the file:
# Set JAVA_HOME export JAVA_HOME=$(/usr/libexec/java_home) # Add JAVA_HOME to PATH export PATH=$JAVA_HOME/bin:$PATH
These lines will set JAVA_HOME to the output of the command /usr/libexec/java_home, which is a utility that locates the JDK or JRE installation folder on Mac. They will also add JAVA_HOME/bin to PATH, which is where the executable files of Java are located.
<li Press Control + O and then Enter to save the file. Press Control + X to exit the text editor.
Type source /.bash_profile and press Enter. This will reload your bash profile and apply the changes.
You have successfully set the environmental variables in Java. You can verify them by typing echo $JAVA_HOME and echo $PATH. You should see the values that you entered in the previous steps.
Test the Java Installation
To test if Java is working properly on your computer, you can write and run a simple Java program. Here are the steps to do that:
Create a new folder on your desktop and name it TestJava.
Open a text editor such as TextEdit and type or copy the following code:
public class TestJava public static void main(String[] args) System.out.println("Hello, world!");
This is a basic Java program that prints "Hello, world!" to the console.
Save the file as TestJava.java in the TestJava folder. Make sure that you use the .java extension and not .txt.
Open the terminal and navigate to the TestJava folder by typing cd Desktop/TestJava and pressing Enter.
Type javac TestJava.java and press Enter. This will compile your Java program and create a file called TestJava.class in the same folder.
Type java TestJava and press Enter. This will run your Java program and display "Hello, world!" in the console.
If you see this output, congratulations! You have successfully installed and tested Java on your computer. If you see any errors, check your code, file name, and environmental variables for any mistakes.
How to Download Java for Linux
If you are using a Linux operating system, you will need to download and install Java on your computer to run Java applications. Here are the steps to do that:
Check if Java Is Installed
Before you download Java, you may want to check if you already have it installed on your computer. To do that, you can use the terminal. Here is how:
Open the terminal by pressing Ctrl + Alt + T or by clicking on the terminal icon on your desktop or menu bar.
Type java -version and press Enter. If you see a message like this:
$ java -version java version "17" Java(TM) SE Runtime Environment (build 17+35-2724) Java HotSpot(TM) 64-Bit Server VM (build 17+35-2724, mixed mode, sharing)
That means you have Java installed on your computer. You can skip the next step and go to the installation step. If you see a message like this:
$ java -version Command 'java' not found, but can be installed with: sudo apt install default-jre sudo apt install openjdk-11-jre-headless sudo apt install openjdk-16-jre-headless sudo apt install openjdk-8-jre-headless sudo apt install openjdk-17-jre-headless
That means you do not have Java installed on your computer. You will need to download it from the official website or use a package manager to install it.
Download Java for Linux
To download Java for Linux, you have two options: download it from the official website or use a package manager to install it.
If you want to download it from the official website, you will need to visit the official Java website and choose the version that suits your needs. There are two main types of Java software that you can download: JDK (Java Development Kit) and JRE (Java Runtime Environment).
JDK is a software package that contains the tools and libraries that you need to develop and run Java applications. It includes JRE, which is a software package that contains the components that you need to run Java applications. If you are planning to write your own Java programs or use an IDE (Integrated Development Environment) such as Eclipse or IntelliJ IDEA, you will need JDK.
JRE is a software package that contains the components that you need to run Java applications that are already written by someone else. If you are only planning to run Java applications that are already written by someone else or use a web browser that supports Java applets, you will need JRE.
To download JDK or JRE for Linux, follow these steps:
Go Go to the official Java website and click on the Download button under JDK or JRE, depending on your choice.
You will be redirected to another page where you will see a table with different versions of JDK or JRE for different platforms. Choose the one that matches your operating system (Linux x64) and click on the Download button next to it.
You will be asked to accept the license agreement before downloading. Check the box that says "I accept..." and click on the Download button again.
You will see a file with a .tar.gz extension being downloaded to your computer. Save it in a location where you can easily find it later.
If you want to use a package manager to install Java, you will need to use the command line and enter some commands depending on your Linux distribution. For example, if you are using Ubuntu, you can use the apt package manager to install Java. Here are the steps to do that:
Open the terminal by pressing Ctrl + Alt + T or by clicking on the terminal icon on your desktop or menu bar.
Type sudo apt update and press Enter. This will update the list of available packages on your system.
Type sudo apt install default-jdk and press Enter. This will install the default JDK package on your system, which includes JRE as well. You may be asked to enter your password and confirm your choice.
You have successfully installed Java on your computer. However, you may need to set some environmental variables in Java to make it work properly.
Set Environmental Variables in Java
Environmental variables are settings that tell your operating system where to find certain files or programs. In Java, you may need to set two environmental variables: JAVA_HOME and PATH.
JAVA_HOME is a variable that tells your operating system where to find the JDK or JRE installation folder. PATH is a variable that tells your operating system where to find the executable files of Java, such as java and javac.
To set these variables on Linux, follow these steps:
Open the terminal by pressing Ctrl + Alt + T or by clicking on the terminal icon on your desktop or menu bar.
Type nano /.bashrc and press Enter. This will open a text editor where you can edit your bashrc file, which is a file that contains commands and settings for your terminal session.
Type or paste the following lines at the end of the file:
# Set JAVA_HOME export JAVA_HOME=$(dirname $(dirname $(readlink -f $(which javac)))) # Add JAVA_HOME to PATH export PATH=$JAVA_HOME/bin:$PATH
These lines will set JAVA_HOME to the output of the command dirname $(dirname $(readlink -f $(which javac))), which is a utility that locates the JDK installation folder on Linux. They will also add JAVA_HOME/bin to PATH, which is where the executable files of Java are located.
Press Control + O and then Enter to save the file. Press Control + X to exit the text editor.
Type source /.bashrc and press Enter. This will reload your bashrc file and apply the changes.
You have successfully set the environmental variables in Java. You can verify them by typing echo $JAVA_HOME and echo $PATH. You should see the values that you entered in the previous steps.
Test the Java Installation
To test if Java is working properly on your computer, you can write and run a simple Java program. Here are the steps to do that:
Create a new folder on your desktop and name it TestJava.
Open a text editor such as Gedit or Nano and type or copy the following code:
public class TestJava public static void main(String[] args) System.out.println("Hello, world!");
This is a basic Java program that prints "Hello, world!" to the console.
Save the file as TestJava.java in the TestJava folder. Make sure that you use the .java extension and not .txt.
Open the terminal and navigate to the TestJava folder by typing cd Desktop/TestJava and pressing Enter.
Type javac TestJava.java and press Enter. This will compile your Java program and create a file called TestJava.class in the same folder.
Type java TestJava and press Enter. This will run your Java program and display "Hello, world!" in the console.
If you see this If you see this output, congratulations! You have successfully installed and tested Java on your computer. If you see any errors, check your code, file name, and environmental variables for any mistakes.
Conclusion
In this article, we have shown you how to download and install Java on different operating systems, such as Windows, Mac, and Linux. We have also shown you how to set environmental variables in Java and how to test the Java installation by writing and running a simple Java program.
Java is a powerful and versatile programming language that can run on any device that has a Java virtual machine (JVM) installed. With Java, you can create various types of applications, such as desktop applications, web applications, mobile applications, embedded systems, games, and more. Java is also widely used in the fields of education, enterprise, science, and engineering.
If you want to learn more about Java and how to use it effectively, you can check out some of the following resources:
The official Java website , where you can find the latest news, updates, tutorials, documentation, and downloads for Java.
The official Java tutorials , where you can find comprehensive and interactive guides on how to program in Java.
The official Java API documentation , where you can find detailed information on the classes, methods, and packages that are available in Java.
The official Oracle Academy , where you can find free online courses and certifications on Java and other Oracle technologies.
The official Oracle University , where you can find paid online and offline courses and certifications on Java and other Oracle technologies.
We hope that this article has helped you to download and install Java on your computer and to get started with this amazing programming language. Happy coding!
FAQs
What is JDK?
JDK stands for Java Development Kit. It is a software package that contains the tools and libraries that you need to develop and run Java applications. It includes JRE (Java Runtime Environment), which is a software package that contains the components that you need to run Java applications.
What is JRE?
JRE stands for Java Runtime Environment. It is a software package that contains the components that you need to run Java applications that are already written by someone else. It includes JVM (Java Virtual Machine), which is a software component that executes the bytecode of Java programs.
What is JVM?
JVM stands for Java Virtual Machine. It is a software component that executes the bytecode of Java programs. Bytecode is a form of intermediate code that is generated by the compiler from the source code of Java programs. JVM interprets the bytecode and translates it into machine code that can run on the specific hardware and operating system of the device.
What are some applications of Java?
Java is a programming language and a software platform that runs on billions of devices, including desktops, laptops, smartphones, tablets, gaming consoles, smart TVs, and many others. With Java, you can create various types of applications, such as desktop applications, web applications, mobile applications, embedded systems, games, and more. Some examples of popular applications that are written in or use Java are:
Android OS , which is the operating system for most smartphones and tablets.
Eclipse , which is an IDE (Integrated Development Environment) for developing software in various languages.
Minecraft , which is a sandbox video game that allows players to create and explore virtual worlds.
Netflix , which is a streaming service that provides movies and TV shows online.
Spotify , which is a music streaming service that provides millions of songs online.
What are some alternatives to Java?
Java is one of the most popular and versatile programming languages in the world. However, it is not the only one. Depending on your needs and preferences, you may want to consider some of the following alternatives to Java:
C# , which is a general-purpose, object-oriented language that runs on the .NET Framework.
C++ , which is an extension of C that supports object-oriented, generic, and functional programming paradigms.
Kotlin , which is a modern, concise, and interoperable language that runs on the JVM and can be used for Android development.
Python , which is an interpreted, high-level language that supports multiple paradigms, such as procedural, object-oriented, functional, and imperative programming.
Ruby , which is an interpreted, Ruby, which is an interpreted, high-level language that supports multiple paradigms, such as procedural, object-oriented, functional, and imperative programming.
These are just some of the many alternatives to Java that you can explore and learn. Each language has its own strengths and weaknesses, and you may find that some of them suit your needs and preferences better than others. 44f88ac181
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