import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); double num1; double num2; double result = 0; int operation = -1; //Lecture des variables System.out.print("Num1: "); num1 = scanner.nextDouble(); System.out.print("Num2: "); num2 = scanner.nextDouble(); System.out.println("Choisissez votre opération:" + "\n1) +" + "\n2) -" + "\n3) x" + "\n4) /"); System.out.print("Operation: "); //Lecture de l'operation a effectuer operation = scanner.nextInt(); //Application de l'operation switch (operation) { case 1: result = num1 + num2; break; case 2: result = num1 - num2; break; case 3: result = num1 * num2; break; case 4: result = num1 / num2; // dans le cas d'une division par 0, java retournera la valeur "infinity" break; default: System.out.println("Error"); break; } //Affichage du résultat final System.out.println("Résultat: " + result); } }