Java: how to store data triple in a list?

Question

What's the best way in java to store data triple in a list ?

[a, b, c] [a, b, c] ...  

I usually use HashMap for couples of data key + value.. should I go for HashMap + Arraylist ? or ArrayList + ArrayList ?

thanks

Answer 1

public class Triplet<T, U, V> {      private final T first;     private final U second;     private final V third;      public Triplet(T first, U second, V third) {         this.first = first;         this.second = second;         this.third = third;     }      public T getFirst() { return first; }     public U getSecond() { return second; }     public V getThird() { return third; } } 

And to instantiate the list:

List<Triplet<String, Integer, Integer>> = new ArrayList<>();