public class MeineMethoden {
  public static void mal5nehmen(int n) {
    n = n * 5;                  
    System.out.println("n = " + n);
  }
  public static int fakultaet(int n) {
    if (n == 0) 
      return 1;
    for (int i = n-1; i > 0; i--)
      n = n * i;
    return n;
  }
  public static void main(String[] args) {
    int n = 7;  
    mal5nehmen(n);             
    System.out.println("n! = " + fakultaet(n));
  }
}