Queue using Two Stacks – Java Code & Algorithm

How to implement a queue using two stacks. In this tutorial, We are going to discuss an algorithm and java code to implement a queue using two stacks.

Algorithm to Implement Queue using Two Stacks

Case 1: Enqueue

Whenever enqueue operation is happen, Push element to stack1.

Case 2: Dequeue

i) When both the stacks are empty then throw an error.
ii) When stack2 is empty and stack1 is not empty, push all the elements of stack1 into stack2.
iii) After that pop the element from stack2 and print it.

At the end of this post, i have mentioned the video tutorial link for more explanation.

Java program to check for balanced parentheses using stack

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Queue using Two Stacks

Queue using Two Stacks

 

Java Program to Implement Queue using Two Stacks

I have discussed the algorithm to implement a queue using stack data structure. Let’s write a java code to implement a queue data structure using two stacks.

 

In this video tutorial, i have explained the implementation of a queue using stack.

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