Mar 6, 2025 · The Java Collection framework provides a Stack class, which implements a Stack data structure. The class is based on the basic principle of LIFO (last-in-first-out). Besides the basic push and pop operations, the class also provides three more functions, such as empty, search, and peek.

Adding an element onto a full stack will cause a stack overflow error. int pop (): Remove the top element from the stack. Popping an element from an empty stack will cause a stack underflow error. In addition to push and pop, several other operations are supported by stack data structures: int peek (): Access the top element from the stack.

In this article, we'll explore the concept of a stack, its operations (push, pop, peek, and isEmpty), its implementation using arrays and linked lists, and its real-world applications in areas like recursion, expression evaluation, and undo/redo functionality. What Is A Stack In Data Structure?

When a stack is completely full, it is said to be Overflow state and if stack is completely empty, it is said to be Underflow state. Stack allows operations at one end only.

There are two ways to implement a stack: using an array or using a linked list. First, let’s do it using a linked list. Let’s define a node. It will store data and a pointer to a next element...

May 15, 2023 · Overflow and Underflow: Explains what happens when a stack is full (overflow) or empty (underflow). There are several ways to implement a stack, with two popular methods being array-based...

There are mainly three basic types of stack operations used in data structure, i.e. push operation, pop operation, and stack top operation. Now, we will discuss each of these operations in detail. In push, we insert data values into a stack. It adds an item at the top of the stack.

Nov 3, 2024 · isEmpty() returns true if the stack is empty else false. size() returns the size of the stack. In this post, we will see how to perform these operations on Stack. Push Operation in Stack: Push operation adds an item to the stack. If the stack is full, then it is said to be an Overflow condition. Below is a sample program to show Push operation ...

¶Functions in C++ STL Stack. empty() Checks if the stack is empty. Returns true if the stack has no elements; otherwise, returns false. size() Returns the number of elements in the stack. push() Adds an element to the top of the stack. pop()Removes the top element from the stack.

If the stack is empty then the isEmpty function returns true value and no item can be removed from the stack. If the stack is not empty then the isEmpty function returns false value and we remove the top item from the stack by decrementing top by 1.