Given an int n, return the absolute difference between n and 21, except return double the absolute difference if n is over 21.

diff21.jar

//Given an int n, return the absolute difference between n and 21, except return double the absolute difference if n is over 21.

//diff21(19) → 2
//diff21(10) → 11
//diff21(21) → 0

public int diff21(int n) {
  
  
  if(n<=21){
    return 21-n;
  }
  
  else if(n>21){
    return ((n-21)*2);
  }
  return 0;
}

what the code