I need help writing d gcd method, can someone give me some hints?  here is what i got so far:


public abstract int gcd (int a, int b) {
            if  (a == 0) {
                  gcd = 0;
            else if ( (a % b) == 0) {
                  gcd = b;      
            else if ( (a/b) == (1/2)) {
                  gcd = a;
                  return gcd;
                  System.out.println (gcd);
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that's not gcd.... and at any rate, gcd is not defined, and u'll never print the gcd... i assume this is java...
here's something: i assume a<b...

class Gcd {
   public static int gcd(int a, int b) {
      if (a==0) return b;
      return gcd(b%a, a);

   public static void main(String[] arg) {
      System.out.println(gcd(3, 7));

this should work

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