How to check the version of Java in cmd?

To check the version of Java installed on your computer using the Command Prompt (CMD) or Command Line, follow these steps:

  • Open the Command Prompt: Press the “Windows key + R” on your keyboard to open the Run dialog box. Type “cmd” (without quotes) and press Enter. This will open the Command Prompt.
  • Check Java Version: In the Command Prompt, type the following command and press Enter:Copy code
  • View Java Version: After executing the command, the Command Prompt will display information about the installed Java version, including the version number and other details.

Please note that the command is case-sensitive, so make sure to type “java” in lowercase. If Java is properly installed on your system, this command should show the Java version information. If it doesn’t, you might need to check your Java installation or set up the Java PATH variable correctly.

Why is important to know java version installed on a PC

Knowing the Java version installed on a PC is important for the following reasons:

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  1. Application Compatibility: Different applications and software may require specific versions of Java to run correctly. Knowing the installed Java version helps ensure that your applications function as expected and avoid compatibility issues.
  2. Security: Java updates often include important security fixes to address vulnerabilities. Being aware of the Java version allows you to determine if your system is up-to-date and protected against potential security threats.
  3. Development and Testing: For developers, knowing the Java version is crucial for building and testing applications. It ensures that the code is compatible with the targeted Java runtime environment.
  4. Troubleshooting: When encountering issues with Java-based applications, support teams may need to know the Java version to diagnose and resolve problems effectively.
  5. Optimization: Some applications or games may perform better or have enhanced features with specific Java versions. Knowing the installed Java version helps optimize performance for certain software.
  6. Updating and Maintenance: With knowledge of the Java version, you can keep your system updated by checking for newer versions and applying updates when necessary.

Overall, knowing the Java version on your PC provides valuable information for ensuring compatibility, security, and efficient use of Java-based applications and software.