Java-Stack Archives - GeeksforGeeks

Stack lastElement() method in Java with Example

Last Updated: 24 December 2018

The Java.util.Stack.lastElement() method in Java is used to retrieve or fetch the last element of the Stack. It returns the element present at the last index of the Stack....read more

Stack lastIndexOf() method in Java with Example

Last Updated: 24 December 2018

The Java.util.Stack.lastIndexOf(Object element) method is used to check and find the occurrence of a particular element in the Stack. If the element is present in the Stac...read more

Stack lastIndexOf(Object, int) method in Java with Example

Last Updated: 24 December 2018

The Java.util.Stack.lastIndexOf(Object element, int last_index) method is used to the last index of the first occurrence of the specified element in this Stack, searching ...read more

Stack removeAll() method in Java with Example

Last Updated: 24 December 2018

The Java.util.Stack.removeAll(Collection col) method is used to remove all the elements from the Stack, present in the collection specified.Syntax:Stack.removeAll(Collecti...read more

Stack retainAll() method in Java with Example

Last Updated: 24 December 2018

The retainAll() method of java.util.Stack class is used to retain from this stack all of its elements that are contained in the specified collection.Syntax:public boolean ...read more

Stack setElementAt() method in Java with Example

Last Updated: 24 December 2018

The setElementAt() method of Java Stack is used to set the component at the specified index of this vector to be the specified object. The previous component at that posit...read more

Stack size() method in Java with Example

Last Updated: 24 December 2018

The Java.util.Stack.size() method in Java is used to get the size of the Stack or the number of elements present in the Stack.Syntax:Stack.size()Parameters: The method doe...read more

Stack toString() method in Java with Example

Last Updated: 24 December 2018

The toString() method of Java Stack is used to return a string representation of the elements of the Collection.The String representation comprises a set representation of...read more

Stack trimToSize() method in Java with Example

Last Updated: 24 December 2018

The trimToSize() method of Stack in Java trims the capacity of an Stack instance to be the list's current capacity. This method is used to trim an Stack instance to the nu...read more

Static and Dynamic Data Structures

Last Updated: 06 June 2024

Data structures are the fundamental building blocks of computer programming. They determine how data is organized, stored, and manipulated within a software application. T...read more

Advanced Data Structure

Calculate weight of parenthesis based on the given conditions

Last Updated: 10 June 2021

Given a valid parenthesis string S, the task is to find the weight of the parenthesis based on the following conditions:Weight of "( )" is 1Weight of "AB" = weight of "A" ...read more

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Java Program to Implement Stack API

Last Updated: 27 July 2022

A stack is a linear data structure that follows a particular order in which insertion/deletion operations are performed. The order is either LIFO(Last In First Out) or FIL...read more

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Check If it is Possible to Convert Binary String into Unary String

Last Updated: 11 December 2023

Given a binary string S of length N. You can apply following operation on S any number of times. Choose two adjacent characters, such that both are 1's or 0's. Then invert...read more

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How to Use Deque as a Stack in Java?

Last Updated: 29 January 2024

The Deque extends the Queue interface and provides additional methods to support operation at both ends. This interface is part of the java.util package. The Deque interfa...read more

Java Program to Implement Stack Data Structure

Last Updated: 26 April 2024

Stack is the fundamental Data Structure that can follow the Last In, First Out(LIFO) principle. It can work that the last element added to the stack will be the first one ...read more