How to create a dynamic Wrapper?

Question

In some parts of my Program I need to pass around a set of Objects (also some primitive types) between my classes.

For every new combination I have to create a pretty "stupid" wrapper-class which just contains two or three fields. (int, String or today I've got a int, String, Date).

All they contain is an empty and a full constructor and each field has its getter/setter. I came across Java dynamic proxies which is praised as a solution for my problem. It appears to be impressive and mighty - I could find some fancy examples how to control robots or fetch changes in beans, yet nothing for my original purpose only to transfer a simple wrapper object between two classes.

Is there a tutorial for this kind of issue?

Answer 1

As i meantion in comments, consider to use generic.

You need to have object which holds two custom types, here we go:

    class Pair<F,S> {
    private F first;
    private S second;

    Pair(F first, S second){
       this.first = first;
      this.second= second;
    }

   public F getFirst(){
   return first;
   }

   public S getSecond(){
   return second;
   }
}

How to use it? it is simple, Pair<String,Integer> pair1 = new Pair<>("This is One",1);