@Override
public Object front() {
sLL.gotoHead();
Object o = sLL.getCurr();
return o;
}
@Override
public Object dequeue() {
Object o = front();
sLL.deleteHead();
return o;
}
@Override
public boolean isEmpty() {
return sLL.isEmpty();
}
@Override
public void enqueue(Object n) {
sLL.insertNext(n);
}
