class Queue{
private:
struct Node
{
String str = "123";
Node* next;
};
enum{
Q_SIZE = 10
};
int items;
const int qsize;
Node * front,rear;
public:
Queue(int);
bool isfull()const;
};
Queue::Queue(int qs = Q_SIZE):qsize(qs),front(nullptr),rear(nullptr),items(0){}