package calcul;


public class CalculetteImpl extends CalculettePOA {

	private double etat = 0;
	
	
	public CalculetteImpl() {
		super();
	}

	public void initialiser() {
		etat = 0;
	}

	public double addition(double n) {
		etat += n;
		return etat;
	}

	public double soustraction(double n) {
		etat -= n;
		return etat;
	}

	public double multiplication(double n) {
		etat *= n;
		return etat;
	}

	public double division(double n) throws DivParZero {
		if(n != 0){
			etat /= n;
			return etat;
		}else
			throw new DivParZero();
		
	}
	

	public double etat() {
		
		return etat;
	}

}