How to Run a specific Main class from a jar

Question

I have a jar file having 2 java classes both having Main methods. Is there a way I can specify while running the jar file, which class to call ? I know that manifest file can be modified to specify the Main class but since only one class can be mentioned, that does not help. I checked the below links, but those dint solve the problem:

https://stackoverflow.com/questions/5474666/how-to-run-a-class-from-jar-which-is-not-the-main-class-in-its-manifest-file

manifest-file execute a main class from a jar

It gives NoClassDefFoundError.

possible duplicate of [How to run a class from Jar which is not the Main-Class in its Manifest file](http://stackoverflow.com/questions/5474666/how-to-run-a-class-from-jar-which-is-not-the-main-class-in-its-manifest-file) — Karol Król, Sep 06 '15 at 20:13

score 12 · Answer 1 · edited Sep 06 '15 at 20:25

12

java -cp target/your_file.jar your.package.name.YourClass

edited Sep 06 '15 at 20:25

josliber

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answered Sep 06 '15 at 20:12

Karol Król

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score 1 · Answer 2 · answered Mar 14 '13 at 10:22

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Have a class that acts as a controller. In its main(), invoke other classes based on arguments passed. Add this as the Main-class in manifest

answered Mar 14 '13 at 10:22

rajesh

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score 0 · Answer 3 · answered Mar 14 '13 at 10:36

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Write a Main class in which the main method calls the actual method depending on the command line argument passed. Add this Main class in the manifest.

answered Mar 14 '13 at 10:36

Kishore

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How to Run a specific Main class from a jar

3 Answers3