OverallMean (statistic provider)

package br.estatisticas;

import br.modelos.Solve;
import java.util.ArrayList;

/**
 * Criado por Lucas Sousa em 21/10/2015.
 */
public class OverallMean {

    private ArrayList<Solve> solves;

    public OverallMean(ArrayList<Solve> solves) {
        this.solves = solves;
    }

    public long getOverallMeanValue() {
        if (solves != null) {
            if (solves.size() > 0) {
                ArrayList<Long> longValues = new ArrayList<>();
                for (Solve s : solves) {
                    longValues.add(s.getTime());
                }
                long somatorio = 0;
                for (long x : longValues) {
                    somatorio += x;
                }
                return (somatorio / longValues.size());
            }
        }
        return 0;
    }
}