for (Iterator<Call> i = callList.iterator(); i.hasNext(); ) { Call call = i.next();
for (Call call : callList) {
	public String toString() {		StringBuffer buf = new StringBuffer();		for (Iterator<Call> i = callList.iterator(); i.hasNext(); ) {			Call call = i.next();			if (buf.length() > 0)				buf.append(',');			buf.append(call.getMethodName());		}		return buf.toString();	}