How to make a mutable constant dependent on the dev/prod environment in Java?

Question

Java

I have several variables in my application that need to be changed each time in order to debug locally and then upload the changes, let's say this:

public final class Properties {
    public static final String HOST= "localhost"; // dev = localhost | prod = mysite.com
}

I'm using Gradle to build and I can't figure out how to do this trick with java files

Answer 1

Add the values ​​to the properties file for each mode. When building the application, set the dev/prod parameter. Depending on the parameter, copy the required file to the assembly. You can get by with one file if you really want to. To do this, for each value, add the prefix dev or prod.
Or something like that)