public int expCount(int eq, Exp e) {
int count = 0;
if (equals(eq, e)) count++;
Iterator<Exp> i = exps.iterator();
while (i.hasNext()) {
Exp ex = i.next();
count += ex.expCount(eq, e);
}
return count;
}
public int expCount(int id) {
int result = 0;
Exp ex;
Iterator<Exp> i;
i = exps.iterator();
while (i.hasNext()) {
ex = i.next();
result += ex.expCount(id);
}
return result;
}
