public class hw334 extends Vic {
	// will return false if parameter vic has a different number of cds as the current
	// instance has
	public boolean sameNumber(Vic par) {
		// as long as either has at least a slot left
		while (this.seesSlot() || par.seesSlot()) { 
			// loop through this until we find a cd as long as we have a slot
			while (!this.seesCD() && this.seesSlot()) {
				this.moveOn();
			}
			// at this point this either has run out of slots or has found a cd
			// do the same thing for par 
			while (!par.seesCD() && par.seesSlot()) {
				par.moveOn();
			}
			/* make sure both of the sequences actually did find a cd, or both 
			 did not find a cd.*/
			if (par.seesCD() == this.seesCD()) { 
				if (par.seesSlot()) par.moveOn();
				if (this.seesSlot()) this.moveOn();
			} else return false; // if only one found a cd they aren't equal				
		} // end of the while loop
		return true; // if we're all the way over here, we KNOW it all worked out
	}
	
	// this is an alternate solution using integers...
	
	public boolean sameNumber1(Vic par) {
		return countcds(this) == countcds(par);
	}
	
	private int countcds(Vic v) {
		int counter = 0;
		while (v.seesSlot()) {
			if (v.seesCD()) counter++;
			v.moveOn();
		}
		return counter;
	}
}