public class IntercanviValors {

  public static void main(String[] args) {
    int numA = 2;
    int numB = 67;

    System.out.println("Abans\n-----");
    System.out.println("numA = " + numA);
    System.out.println("numB = " + numB);

    int numAux = numA;
    numA = numB;
    numB = numAux;

    System.out.println("\nDesprés\n------");
    System.out.println("numA = " + numA);
    System.out.println("numB = " + numB);

  }
}