I want to call data structure from another classes but i find a problem here,
can you help me?

here the source code 

The data structure from class SimBetWithFairRouting

```
public  Map<DTNHost, ArrayList<Double>> neighborsHistory;

```

and i will call it in this method from class NeighbourhoodSimilarity

```
private double countDirectSimilarity(double[][] matrixEgoNetwork, int index) {
    double sim=0;

    for (int i = 0; i < matrixEgoNetwork.length; i++) {
//here the problem
        if (matrixEgoNetwork[i][0]==this.countAggrIntStrength(*i will call it in here*) && matrixEgoNetwork[i][index]==1) {
            sim++;

        }
    }

    return sim;

}

```

any way i can make this work without changing the map into static form?
clue : in the class SimBetWithFairRouting had replicate method, can you help me?