However, in other cases, the stack has to be modeled on more general data structures. This application is so important to programming that in most processors the return stack is implemented in hardware in the instruction set. With each return operation from the subroutine (return), the return address is removed from the stack and control is transferred to it. With each nested (including recursive) call of subroutines, new return addresses are added to the stack. The call point on the stack stores the return address from the subroutine after it terminates (and possibly the parameters passed). What is the Stack data structure for?One of the most important uses of the stack is to organize subroutine calls. The push operation inserts an element into the stack and pop operation removes an element from the top of the stack. The stack data structure in Java or elsewhere in programming has the two most important operations, push and pop. However in order to extract an orange ball from our flask-stack, we need to extract first the ball that got there last (the green one), then the one that was the penultimate one (but at the time of extraction it is the last one). The first in the flask is an orange ball, then purple, and finally green (I apologize to those who know the more accurate names of these colors). What's going on here? We have a flask in which only one ball can hit at a time. Here is a gif picture to demonstrate this principle. The book that you put in the stack first is at the bottom, and the first we will take out of the box is the book that was at the top - that is, the one that got into the box last. Imagine a deck of cards or a stack of books in a box. It's a linear data structure that is based on Last-in-First-out (LIFO) principle. What is Stack Data StructureFirst of all, let's take a quick look at what a stack data structure is. But we will also talk about such a data structure as Stack and what it is used for. Also it could be the part of memory to keep data, In this article we will pay attention first of all to the Stack class, consider its methods and give examples. It works on the principle of the Stack data structure, which is used to organize one of the types of memory. Stack in Java usually means the class from Collection Framework that implements the List interface.
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