How to add Java Source: Calc3.java into EJS ?

[lookang]

How to add Java Source: Calc3.java into EJS ?


reference: http://www.mste.uiuc.edu/users/exner/java.f/calc/
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Java Source: Calc3.java

1. Is there a import button?

2. Or is it a copy and paste into custom function ?

Thanks!

[Fu-Kwun Hwang]

You can add java functions into custom functions.

Actually, you can also add java class files or jar file.
You will find "additional libraries" button (to import jar or class) at custom page.

For example: EJS use many libraries from opensourcephysics project and other open source code.

[lookang]

You can add java functions into custom functions.
Actually, you can also add java class files or jar file.
You will find "additional libraries" button (to import jar or class) at custom page.

1.  start a new file
2. navigate to custom page
3. right click for more options to import file.java that is saved in the workspace
4. though it say error in import
5. the is a button called set external java file so i select the file.java again
6. this time the code is imported
7. click RUN a red screen appear
8. what must be done to proceed to be able to build the interface or is it automatically since the external file.java seems to have draw syntax i think?

thanks

I attached the source.xml for easy reference

[Fu-Kwun Hwang]

The import button is for generated java .class  or .jar file (so called java byte code.),
It is not for java source code.

You have found a way to import java source.
But I thinj your example would not work. Because what you have imported is an applet. I do not know there is a way to add another applet inside another applet. (You can add drawingPanel inside another draeingPanel).
The java code you tried to import is a complete java applet. You can not put that inside an ejs applet.
You need to remove some of the code to make it work.

I was not able to try out your xml because you did not attach Calc3.java

[lookang]

thanks for giving your time to explain this