public class Association { private E element; private int frequence; public Association(E element, int frequence) { this.element = element; this.frequence = frequence; } public E getElement() { return element; } public void setElement(E elt) { this.element = elt; } public int getFrequence() { return frequence; } public void setFrequence(int f) { this.frequence = f; } @Override public String toString() { return "Association [element=" + element + ", frequence=" + frequence + "]"; } }