StripComments

public static void stripComments(Scanner input) {
   String s = "";
   while( input.hasNextLine() ) {
      s += input.nextLine() + "\n";
   }
   while( s.indexOf("/*")>=0 ) {
      int first = s.indexOf("/*");
      int second = s.indexOf("*/");
      s = s.substring(0, first) + s.substring(second+2);
   }
   while( s.indexOf("//") >= 0 ) {
      int first = s.indexOf("//");
      String f = s.substring(0, first);
      String g = s.substring(first+2);
      int a = g.indexOf("\n");
      int second = f.length() + a;
      s = s.substring(0, first) + s.substring(second+2);
   }
   System.out.print(s);
}