c# how to add and remove a Point to a Queue -

can tell me how can add , remove point queue. because dequeue returns implicit error. f.e.

queue q = new queue(); point = new point(0,0); point j = new point(0,0); q.enqueue(j); j = q.dequeue();

queue.dequeue returns object, need cast correct type:

queue q = new queue(); point j = new point(0, 0); q.enqueue(j); while (q != null)  //loop problem--see below {     j = (point)q.dequeue(); }

alternatively, can use generic version of queue, queue<t>. since queue of type declare, dequeue returns objects of type, there's no need cast:

point j2 = new point(0, 0); queue<point> q2 = new queue<point>(); q2.enqueue(j2); j2 = q2.dequeue();

finally, while loop throw invalidoperationexception when execute, because after first dequeue, attempt dequeue again when queue empty.

O9