Apr 4, 2025 · Follow the steps given below to reverse a string using stack. Create an empty stack. One by one push all characters of string to stack. One by one pop all characters from stack and put them back to string. Time Complexity: O (n) Only one traversal to push and one to pop so O (n)+O (n) = O (n).

Mar 25, 2025 · Follow the steps given below to reverse an array using stack. Create an empty stack. One by one push all elements of the array to stack. One by one pop all elements from the stack and push them back to the array.

Oct 21, 2020 · Convert character array to string. Return reversed string. Below is the implementation of the above approach. Time Complexity: O (n), where n is a number of characters in the stack. Auxiliary Space: O (n) for the stack.

Nov 7, 2014 · To reverse the array you only have to iterate half of the array and start swapping the element from start with end. swap element (position from start) with element (end position - position from start) String temp = reverse[i];

Dec 1, 2021 · This post will discuss how to reverse a string using the stack data structure in C/C++, Java, and Python using explicit stack and call stack.

Reverse int array using stack. strArr[i] = String.valueOf(arr[i]); stack.push(strArr[i]); strArr[i] = stack.pop(); arr[i] = Integer.parseInt(strArr[i]); public static void main(String[]args){ Integer arr[] = {3,5,6,8}; Stack<Integer> st = new Stack<>(); for(int i =0;i<arr.length;i++){ st.push(arr[i]); for(int i =0;i<arr.length;i++){

Mar 17, 2025 · Approach to reverse a string using stack. Push the elements/characters of the string individually into the stack of datatype characters. Pop the elements/characters individually from the Stack until the stack becomes vacant. Add a popped component to the character array. Convert character array to string. Return turned around the string.

In this blog post, we implemented a solution to reverse a string using a stack in Java. We walked through the logic step-by-step, explaining how the stack's LIFO principle helps reverse the order of characters.

May 19, 2020 · Simply iterate the array, and replace each entry with its reverse. You can use a StringBuilder to reverse a String, calling StringBuilder.reverse. Like, public static void reverse(String[] array) { for (int i = 0; i < array.length; i++) { array[i] = new StringBuilder(array[i]).reverse().toString(); } } And then to test it

System.out.println("Reversed array is ::"+Arrays.toString(reverseArray)); Learn how to reverse the elements of an array using a stack in Java with this step-by-step guide.