print no. in decreasing increasing order (basic)

 public class dog{

public static void Sum(k){ if(k==0){ return ; } System.out.println(k); int fun=(k-1); Sum(fun); } private static void main() { int k=8; System.out.println(Sum(k)); } } //nn// public class gold{ public static void Cat(n){ if(n==8){ return 8 ; } System.out.println(n); int fun=n++; Cat(fun); } private static void main() { int n=1; System.out.println(Cat(n)); } }