Java Program to Reverse a String using Stack

Write a java program to reverse a string using stack data structure. Given an input string, We have to write a java code to reverse a string using stack.

In my previous tutorial, I have explained java program to reverse a string using recursion.

Before solving this problem, Let’s understand what is a stack data structure.

What is Stack?

A stack is linear data structure in which insertion and deletion operations are allowed only at one end. It is also called LIFO (Last In First Out) data structure. In LIFO, an element which inserted last must be the first element to be removed.

In Stack, Insertion and Deletion operations are known as push and pop.

Push – To insert an element in a Stack.
Pop – To delete an element from a Stack.

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Reverse a String using Recursion

Reverse a String using Recursion

Algorithm to Reverse a String using Stack

To reverse a string using stack, First we push all the characters of a string in a stack. After that we do a pop operation on a stack. So character which inserted last in a stack is the first to be popped out.

Java Program to Reverse a String using Stack

We have discussed an algorithm to reverse a string using stack data structure. Let’s write a java code to implement this algorithm.

 

Find next greater element in an array

 

Video Tutorial To Reverse a String using Stack

 

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