Why Am I Getting \'Unable to Access Jarfile\' Error When Running My JAR?

Troubleshooting "Unable to Access Jarfile" Error

When attempting to execute a program outside of an IDE, users may encounter the "Unable to access jarfile" error. This issue arises specifically when double-clicking an executable JAR file or using the command "java -jar Calculator.jar."

Cause:

This error typically occurs due to an incorrect command or a missing file extension. The command "java -jar" requires the full JAR file name with the ".jar" extension.

Solution:

To resolve this issue, ensure that the command is formatted correctly:

java -jar Calculator.jar

In this command, "Calculator.jar" represents the actual JAR file name with the ".jar" extension.

If the command is correct but the error persists, verify that the JAR file is present in the specified path and is accessible.

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