public class App {

  public static void main(String[] args) {
    System.out.println("trn:" + Foo.get().bar());

    System.out.println("Title trn : " + Names.get().title());
    System.out.println("Password trn : " + Names.get().password());
    System.out.println("Username trn : " + Names.get().username());
    System.out.println("One param trn : " + Names.get().param("some"));
    System.out.println("Two params trn : " + Names.get().params("some", "params"));
    System.out.println("Three params trn : " + Names.get().params3("some", "params", "and another"));
  }
}


names.properties
----------------
password=property password
username=property username
title=property title
param=property param; {0} first (and only) arg.
params=property params; {0} first arg; {1} second arg.
params3=property params; {0} first arg; {1} second arg; {2} third arg.


foo.properties
--------------
bar=foo


Output
------
Title trn : property title
Password trn : property password
Username trn : property username
One param trn : property param; {0} first (and only) arg.
Two params trn : property params; {0} first arg; {1} second arg.
Three params trn : property params; {0} first arg; {1} second arg; {2} third arg.