Question

I’m wondering what the best java like container would it be for

<Key, <pairOfType1,pairOfType2>>

I have an object1 that is the key and a t1 and t2.

My classes have the fallowing attributes:

public class Patient implements Externalizable {
    protected int iD;
    protected String name;
    protected String CNP;
    protected int   age;


public class Treatment implements Externalizable {
    protected int iD;
    protected String description;

public class Diagnosis implements Externalizable {
        protected int iD;
        protected String name;
        protected String description;
        protected String date;

PS: I curious for a ‘real program’ since my requirements are to wasve.
I have considered the idea of
private Map<Patient, <Diagnosis, Treatmet>> map = new Map<>();

Answer 1

Why can’t you just put your Diagnosis and Treatment in a class and pass

    Pair<Diagnosis,Treatment> pair = new Pair<>(d,t);
    Map<Key, Pair> map = new Map<>();
    ...

where

    class Pair<D,T> {
        public D myD;
        public T myT;
        public Pair(D d, T t) {
            myD = d;
            myT = t;
        }
    }