Implement Stack using Two Queues

Question

A similar question was asked earlier there, but the question here is the reverse of it, using two queues as a stack. The question...

Given two queues with their sta

Answer 1

Here's one more solution:

for PUSH : -Add first element in queue 1. -When adding second element and so on, Enqueue the element in queue 2 first and then copy all the element from queue 1 to queue2. -for POP just dequeue the element from the queue from you inserted the last element.

So,

public void push(int data){
if (queue1.isEmpty()){
    queue1.enqueue(data);
}  else {
queue2.enqueue(data);
while(!queue1.isEmpty())
Queue2.enqueue(queue1.dequeue());
//EXCHANGE THE NAMES OF QUEUE 1 and QUEUE2

} }

public int pop(){
int popItem=queue2.dequeue();
return popItem;
}'

There is one problem, I am not able to figure out, how to rename the queues???