Queue is another relatively simple data type. It has many practical uses in application development.
A queue organizes data in a first-in, first-out (FIFO) manner. Because of FIFO, the most obvious application is to model a waiting line. This could be a line of customers waiting for some service, a print job waiting in a print queue, a concurrent process waiting for CPU access, and many other applications that require waiting lines. New items are inserted into the back of a queue, and items are removed ...
