![]() Java supports both these data structures and provides a sample implementation of them, by the way, you should also be familiar with implementing Stack and Queue in Java using an array and linked list, which is another good code-related question in a programming job interview. When the difference between Stack and Queue is asked in Java Interviews, the interviewer also expects you to be familiar with the Stack and Queue classes from Java Collection Framework. object which is first inserted, is first consumed, because insertion and consumption happen at the opposite end of the queue. ![]() On the other hand Queue data structure literally represent a queue, which is a FIFO (First In First Out) data structure, i.e. Well, the main difference comes the way these data structures are used, Stack is LIFO (Last In First Out) data structure, which means the item which is inserted last is retrieved first, similar to a stack of plates in a dinner party, where every guest pick up the plate from the top of the stack. The difference between Stack and Queue Data structure is also one of the common questions not only in Java interviews but also in C, C++, and other programming job interviews. ![]() ![]() You can use Stack to solve recursive problems and Queue can be used for ordered processing. As opposed to the array and linked list, which are considered primary data structures, they are secondary data structures that can build using an array or linked list. Stack and Queue are two of the important data structures in the programming world and have a variety of usage. ![]()
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