Creating a Jar File Using Command Prompt

[hitmen]

I encountered the following error. Can anyone help?
See attachment

[masijade]

Lesson: Packaging Programs in JAR Files (The Java™ Tutorials > Deployment)

[Eranga]

What's the command java baogalio.jar suppose to do in that case?

[hitmen]

The command is suppose to open a jar file. However, there is a problem with the main class

[Eranga]

You mean open the jar file is running it? Or extracting all classes?

[masijade]

If want to execute the jar you need to add the -jar option to the command (and hopefully you've built the manifest file correctly).

java - the Java application launcher

And, no, that error is not any indication of there being "a problem with the main class". The problem, currently, is the fact that you are entering the command wrongly, and didn't bother to read the documentation to find out how to do it correctly.

[Eranga]

Yep, that means our thread starter start to work in wrong way. May be refer worn materials about jar files.