51 lines
1.6 KiB
Java
51 lines
1.6 KiB
Java
|
/**
|
||
|
|
* Exemples d'affichage d'expressions arithmétiques
|
||
|
|
*
|
||
|
|
* @author Xavier Crégut
|
||
|
|
* @version $Revision$
|
||
|
|
*/
|
||
|
|
|
||
|
|
public class ExemplesAffichage {
|
||
|
|
|
||
|
|
static final private OperateurBinaire plus = new Addition();
|
||
|
|
static final private OperateurBinaire fois = new Multiplication();
|
||
|
|
static final private OperateurUnaire negation = new Negation();
|
||
|
|
|
||
|
|
static public Expression expression1() {
|
||
|
|
return new ExpressionUnaire(negation,
|
||
|
|
new ExpressionBinaire(fois,
|
||
|
|
new Constante(2),
|
||
|
|
new ExpressionBinaire(plus,
|
||
|
|
new Constante(1),
|
||
|
|
new AccesVariable("x"))));
|
||
|
|
}
|
||
|
|
|
||
|
|
static public Expression expression2() {
|
||
|
|
return new ExpressionBinaire(plus,
|
||
|
|
new Constante(5),
|
||
|
|
new ExpressionBinaire(fois,
|
||
|
|
new AccesVariable("x"),
|
||
|
|
new Constante(4)));
|
||
|
|
}
|
||
|
|
|
||
|
|
static public Expression expression3() {
|
||
|
|
return new ExpressionBinaire(plus,
|
||
|
|
new Constante(5),
|
||
|
|
new ExpressionBinaire(fois,
|
||
|
|
new AccesVariable("x"),
|
||
|
|
new Constante(4)));
|
||
|
|
}
|
||
|
|
|
||
|
|
public static void main(String[] args) {
|
||
|
|
// Afficher expression 1
|
||
|
|
AfficheurInfixe infixe = new AfficheurInfixe();
|
||
|
|
String e1infixe = expression1().accepter(infixe);
|
||
|
|
System.out.println("e1 = " + e1infixe);
|
||
|
|
|
||
|
|
// Afficher expression2
|
||
|
|
String e2infixe = expression2().accepter(infixe);
|
||
|
|
System.out.println("e2 = " + e2infixe);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|