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This Java tip illustrates a method of implementing a Queue. Java provides LinkedList
class which may be implemented as a queue. Developers may store their data in a queue
and retrieve their data in First in First out(FIFO) manner.
LinkedList queue = new LinkedList();
// In queue data is added in the end
queue.add(object);
// Data is retrieved from the head of queue
Object o = queue.removeFirst();
// In case multiple threads are using a queue there is
// a need to synchronize methods
queue = (LinkedList)Collections.synchronizedList(queue);
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