Creating a Jar Archive?

Question

Java

I have 2 java files, in one of which the server is written (for a regular chat), and in the second the application itself. And in both classes there is main ()
Created a jar for the application, everything works.
1) First compiled: javac MyApp.java
2) Created a manifest and wrote Main-Class: MyApp
3) And this is how I created the jar: jar -cvmf manifest.txt MyApp.jar *.class
But the chat does not work in the application.
Question: How can I make the server and application start when I click on the jar?

Answer 1

The manifest points to a class that has a main to start with. Only one class can be specified. Make another proxy class that will contain main and create server and application objects in the main.