Have you seen the Java Programming for SAS Viya resources at http://developer.sas.com? Have a look at https://developer.sas.com/guides/java.html and there are examples in the Getting Started with SAS Viya for Java.
@MichelleHomes is correct. The best resource is developer.sas.com. As for the correct Community, you have already arrived in the Developers Community. If you can't find what you are looking for on the Developer web site or have further questions, please continue to post here.
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