PriorityQueue Class is one of the collection framework class which implements Queue, Serializable, Iterable and Collection interfaces. It is using natural ordering to order then elements of PriorityQueue.Or elements will be ordered based on Comparator provided at queue construction time depending on which constructor is used. PriorityQueue is based on a priority heap. Heap is … Read more
People from software background may have heard a lot about SDLC. But what actually is it? Let’s discuss in depth about SDLC and its different phases. SDLC stands for Software Development Life cycle. It is basically a process or a methodology to ensure that a good quality software is build. The software development life cycle … Read more
If you look at collection hierarchy, Queue extends collection interface. Main purpose of collection is to hold the elements prior to processing. Queue interface provides some additional operations like insertion, inspection and extraction besides collection interface operations. All these three operations exist in 2 different forms. One return special value(null or false depending on the operation) … Read more
Stack class in java is one of the collection interface class which is subclass of Vector class. Stake class supports usual push and pop operations. In contrast to queue, Stack class has last-in first-out(LIFO) data structure. So item which is inserted at top will be available first. Stack class extends Vector class of List interface … Read more