How to Check Java Version in Windows Command Prompt
Learn how to check the Java version in Windows Command Prompt using simple commands. Ensure optimal performance and security by regularly checking and updating Java.
- Checking the Java Version in Windows Command Prompt
- Other Ways to Check the Java Version
- 3 ways to check Java version in Windows
- Ensuring Optimal Performance and Security
- Troubleshooting Java in Windows
- How To Check Java Version In Windows 10
- Other helpful Java code examples for checking the version in Windows Command Prompt
- Conclusion
- How do I know if I have Java 8 or 11 in cmd?
- How do I check my Java version Java?
- How to check JDK and jre version in cmd?
- How to check Java path in cmd?
Java is a popular programming language used by developers to build applications and software across various platforms. Whether you are a beginner or an experienced developer, it is important to ensure that you have the correct version of Java installed on your computer to guarantee optimal performance and security . In this blog post, we will focus on how to check the Java version in Windows Command Prompt .
Checking the Java Version in Windows Command Prompt
The Windows Command Prompt is a powerful tool that enables users to interact with the operating system through a command-line interface. To check the Java version in Windows Command Prompt, follow these simple steps:
- Open the Command Prompt application by clicking on the Start menu and searching for “Command Prompt.” Alternatively, you can press the Windows key + R and type “cmd” in the Run dialog box.
- Type “java -version” in the Command Prompt window and press Enter.
java version "1.8.0_291" Java(TM) SE Runtime Environment (build 1.8.0_291-b10) Java HotSpot(TM) 64-Bit Server VM (build 25.291-b10, mixed mode) 'java' is not recognized as an internal or external command, operable program or batch file. - If you receive an error message, make sure that the Java path is correctly set in the system variables. You can check the Java path by typing “echo %JAVA_HOME%” in the Command Prompt window.
- If the Java path is not set correctly, you can update it in the system variables by following these steps:
- Open the Control Panel by clicking on the Start menu and searching for “Control Panel.”
- Click on “System and Security” and then “System.”
- Click on “Advanced system settings.”
- Click on the “Environment Variables” button.
- Under “System variables,” scroll down and find “JAVA_HOME.”
- Click on “Edit” and update the path to the correct directory where Java is installed.
- Click on “OK” to save the changes.
Other Ways to Check the Java Version
Aside from using the Command Prompt, there are other ways to check the Java version in Windows. Here are some additional methods:
About Java utility
The About Java utility is a graphical user interface (GUI ) that displays information about the Java version installed on your computer. To access the About Java utility, follow these steps:
- Open the Control Panel by clicking on the Start menu and searching for “Control Panel.”
- Click on “Programs” and then “Java.”
- Click on the “About” tab to view the Java version.
Directories Method in Control Panel
The Directories Method in Control Panel is another way to check the Java version. Here are the steps:
- Open the Control Panel by clicking on the Start menu and searching for “Control Panel.”
- Click on “System and Security” and then “System.”
- Click on “Advanced system settings.”
- Click on the “Environment Variables” button.
- Under “System variables,” scroll down and find “Path.”
- Click on “Edit” and search for the directory where Java is installed.
- Check the version number for the Java executable.
-version Command in the Java Command Prompt
The -version command is another way to check the Java version. Here are the steps:
- Open the Command Prompt application by clicking on the Start menu and searching for “Command Prompt.”
- Type “java -version” in the Command Prompt window and press Enter.
java version "1.8.0_291" Java(TM) SE Runtime Environment (build 1.8.0_291-b10) Java HotSpot(TM) 64-Bit Server VM (build 25.291-b10, mixed mode) 3 ways to check Java version in Windows
How to check version of Java in Windows with 3 ways: Java About dialog, java -version
Duration: 2:46
Ensuring Optimal Performance and Security
Java may need to be updated periodically to ensure optimal performance and security. It is important to download and install updates from the official Java website. Updating Java can also help to fix any bugs or issues that may be present. Checking the Java version regularly can help to ensure that the latest version is installed.
Troubleshooting Java in Windows
If an error message is displayed when checking the Java version, it may be necessary to troubleshoot Java in Windows. Checking the Java path in the system variables is a good place to start. If the Java path is not set correctly, it can be updated in the system variables. If Java is still not working, it may be necessary to reinstall Java or seek further assistance.
How To Check Java Version In Windows 10
Learn how to check Java version in windows 10.Java is a programming language that is
Duration: 2:29
Other helpful Java code examples for checking the version in Windows Command Prompt
In java, how to see java version in windows 10 code example
In java, how to check java version by cmd code example
In java, how to check the version of java installed on my computer code example
// If you have the Java Runtime Environment (JRE) version installed, run this command on your terminal(Command Prompt - for windows): java -version// If you have the Java Compiler version installed, run this command [still on your terminal(Command Prompt - for windows)]: javac -version Conclusion
In conclusion, checking the Java version is important for ensuring optimal performance and security. There are multiple ways to check the Java version in Windows and Mac. Checking the Java version in Windows Command Prompt is a quick and easy method. Regularly checking the Java version and updating Java can help to ensure optimal performance and security. By following the steps outlined in this blog post, you can quickly and easily check the Java version in Windows Command Prompt.
Frequently Asked Questions — FAQs
Why is it important to check the Java version?
Checking the Java version is important for ensuring optimal performance and security. It helps to identify if the latest version of Java is installed and if any updates are required.
How can I check the Java version in Windows Command Prompt?
To check the Java version in Windows Command Prompt, type «java -version» and press Enter. The version number will be displayed if Java is installed.
What should I do if Java is not installed on my computer?
If Java is not installed, an error message will be displayed. You can download and install Java from the official website.
How can I update Java for better performance and security?
You can update Java by downloading the latest version from the official Java website. Regularly checking and updating Java can help to ensure optimal performance and security.
What should I do if I encounter an error message while checking the Java version?
If you encounter an error message while checking the Java version, you can troubleshoot Java in Windows by checking the Java path in the system variables. If the Java path is not set correctly, it can be updated in the system variables. If Java is still not working, it may be necessary to reinstall Java or seek further assistance.
Are there other ways to check the Java version?
Yes, there are other ways to check the Java version, such as using the About Java utility in Windows Control Panel or using the -version command in the Java command prompt.
How to Check Java Version on Mac or Windows
Java runs many of the applications that we use daily. Many applications cannot run on older versions of Java. Hence, it is essential to know which version is installed on your system.
In this tutorial, learn how to check the Java version on your Mac or Windows system.
- A system running macOS or Windows
- Access to the command-line/terminal window
- A version of Java installed
Check Java Version on Mac
You can find the version of Java on macOS by:
- using the GUI (Mac’s System Preferences)
- prompting for the version in the terminal window
Option 1: Check Java Version on Mac Using the GUI
To check the Java version on Mac without using the terminal by searching for the Java Control Panel in the System Preferences.
1. Click the Apple icon in the menu bar to open the drop-down menu and navigate to System Preferences.
2. A new window opens with various icons and settings. Find and click the Java icon to open the Java Control Panel.
3. Once the Java Control Panel opens, click the About button. A new window with Java version information should appear.
Option 2: Check Java Version on Mac Using the Terminal
If you prefer using the terminal, checking the Java version is a simple one-command process.
1. First, open the terminal. To do so, click the Spotlight Search button in the top-right of the screen.
2. Type terminal in the search bar and open it by clicking on the icon in the search results.
3. Once in the command line, run the command: java -version . The output should display the Java version installed on your MacOS.
To check the version of the primary Java compiler – javac (pronounced “java-see”) use the command:
Note: If you have a Linux system, refer to How To Check Java Version Installed On Linux.
Check Java Version on Windows
To check the Java version on a Windows computer, you can use:
Option 1: Check Java Version on Windows Using GUI
To find the Java version on your Windows without opening a terminal window, use the Control Panel.
1. Open the Windows menu in the bottom-left corner and type control panel in the search bar.
2. Find the Control Panel in the search results and click the icon to open it.
3. Move to the Programs directory.
4. Find and click the Java icon to open the Java Control Panel.
5. Once the control panel opens, click the About button.
6. The About Java window should appear and display the Java version on your computer.
Option 2: Check Java Version on Windows Using Command Line
Another option to find the Java version on Windows is through the command line.
1. Open the Windows Start menu in the bottom-left corner and type cmd in the search bar.
2. Then, open the Command Prompt once it appears in the search results.
3. A new window with the command prompt should appear. In it, type the command java -version and hit Enter. The output should display the Java version installed on your Windows system.
You can also check the version of the Java’s primary compiler, javac, with the command:
This article showed you how to check the version of Java installed on a macOS or Windows system.
Как узнать версию Java в Windows 10
Получить базовые сведения об установленной платформе Java можно непосредственно из ее интерфейса, а именно – из панели управления Java.
- Откройте панель управления Java через поиск Windows или классическую «Панель управления».
- В открывшемся окне панели нажмите «About…».
- Появится окошко, в котором будет указана версия и сборка платформы.
Способ 2: Консоль «PowerShell»
Удобно для получения номера версии и сборки Java использовать встроенную консоль «PowerShell».
В результате в консоль будут выведены номер версии, обновления, сборки и ревизии.
Способ 3: Командная строка
В классической «Командной строке» команда получения номера версии платформы Java еще проще, чем в «PowerShell», но здесь есть один нюанс.
- Откройте «Командную строку» от имени администратора из поиска Windows или другим известным способом.
Обратите внимание на формат вывода: номер версии указывается второй цифрой, вначале идет 1 независимо от версии. Например, результат «1.8.0_331» станет означать, что на компьютере установлена версия платформы 8.0, сборка 331.
Способ 4: Панель управления
Номер версии и сборки также указан в окне апплета «Программы и компоненты», там же указывается название поставщика и дата установки платформы.
Способ 5: Проводник
Наконец, узнать номер версии и сборки платформы можно с помощью обычного «Проводника». Если пользователь не менял путь установки, папку Java можно будет найти в расположении C:\Program Files\Java .
В этом каталоге располагается папка с файлами установки, в названии которой указывается номер версии и сборки в том же формате, в котором их выводит «Командная строка», смотрите Способ 3.