What I want is to do a data binding as follows:
(<<Integer>, <Integer>, ArrayList<Integer>)
I tried to create a HashMap<Integer,HashMap<Integer,ArrayList<Integer>>> the problem is that I forgot that the keys have to be unique and I need to have equal values sometimes.
Ex: (1,1, {1,2,3,4}) (1.2, {1.3})
What is the best way to aggregate this data?
One possible solution is to create the class where you add this data, then create a list of all objects in that class.
//crias a classe com todos os dados que o teu objeto precisa
public class myNewObjecto
{
private integer num1;
private integer num2;
private ArrayList<Integer> listNumeros;
//crias os get/set
/
@Override
public int hashCode() {
//implementar o hashCode
}
@Override
public boolean equals(Object obj) {
//implementar o equals
}
}
You create% as_% of your objects:
private ArrayList<myNewObjecto> listmyNewObjecto;
Then you add the data to your object:
//se criares o construtor na class fazes:
myNewObjecto obj = new myNewObjecto(1,2,listaInteiros);
//senão usas os set´s
myNewObjecto obj = new myNewObjecto();
obj.setNum1(1);
obj.setNum2(2);
obj.set(listNumeros);
//adicionas o objeto a tua lista
listNumeros.add(obj);