public class MaClasse implements Applicable { private double x; public MaClasse(double x) { this.x=x; } public double calcul(double facteur ) //surcharge { return facteur*x; } public static void main ( String [] args ) { Applicable chose = new MaClasse(2.5); System.out.println ("Valeur de calcul: " + chose.calcul(10) ); } }