How Can I Run JAR Files by Double-Clicking on Windows?

Running JAR Files with Double-Click on Windows

When it comes to executing JAR files, using the command line with java -jar suffices. However, for convenient double-click execution, consider the following methods:

Installing/Updating JRE

The easiest solution is to upgrade or reinstall the Java Runtime Environment (JRE). This ensures that the required Java runtime is installed and associated with JAR files.

Configuring File Type Association

Alternatively, follow these steps to manually associate JAR files with the Java interpreter:

1. Open Windows Explorer and select "Folder Options..." from the "Tools" menu.
2. Switch to the "File Types" tab and scroll down to select "JAR File" type.
3. Click the "Advanced" button.
4. In the "Edit File Type" dialog, select "open" from the "Actions" list and click "Edit..."
5. Click the "Browse" button and navigate to the location of javaw.exe, which is typically located in your Java Virtual Machine (JVM) bin directory (e.g., C:Program FilesJavaj2re1.4.2_04binjavaw.exe).
6. Enter the following path in the "Application used to perform action" field: "" -jar "%1".
7. Click "OK" to save all changes and close the dialogs.

After completing either of these methods, double-clicking on JAR files should now execute them using the Java runtime, providing a seamless experience.

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