B4J Question how to create library with B4J

Roberto P. · Sep 28, 2018

I want to create a library with B4J, containing generic functions for use with another Java program.

I did two tests with new project "UI" and "NON UI".

When I try to generate the library from the following error:

Compiling code. error
No modules to compile.
Compilation:
main

I try to remove the main module from the project menu but it does not allow it.

can you tell me how to do it?

thank you

DonManfred · Sep 28, 2018

Create a Class with the functionality, compile it to a library and use the compiled library in your projects then.

Roberto P. · Sep 28, 2018

OK thanks

but I would like to create more classes in the project and save everything in one library. So I have to create a library for each class!

DonManfred · Sep 28, 2018

Roberto P. said:
So I have to create a library for each class!

yes.
Or you are using one class which does contain all

Edit to add: Seems i was wrong. Sorry

alwaysbusy · Sep 28, 2018

DonManfred said:
yes.

Are you sure? I thought everything in the project, except the main class, was compiled to the library.

klaus · Sep 28, 2018

Roberto P. said:
but I would like to create more classes in the project and save everything in one library.

No problem!

So I have to create a library for each class!

No!

As alwaysbusy already wrote, all modules in the project will be in the library except the Main module.
You can set #ExcludeFromLibrary on top of a module to exclude it from the library.

Roberto P. · Sep 28, 2018

ok, thank at all

Daestrum · Sep 28, 2018

I want to create a library with B4J, containing generic functions for use with another Java program.

Is the other java program created by b4j or is it a native java program?

Roberto P. · Sep 28, 2018

I created the library. But I can not use it from a program written in Java. Can the B4j libraries only work for B4J \ B4A?

klaus · Sep 28, 2018

Roberto P. said:
Can the B4j libraries only work for B4J \ B4A?

Yes with B4J but not with B4A.

B4J Question how to create library with B4J

Roberto P.

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