why is it not working?

Question

this code is removing the last element in a Stack.
i need to remove the last element and then return the element that i removed.
how can i make it that it will remove it(i did it well) and then return the element that i removed (struggeling with it)...
code:

import java.util.*;
public class Main
{
public static void main(String[] args) {

Stack<Integer> myStack = new Stack<Integer>();

myStack.add(0);
myStack.add(1);
myStack.add(2);
myStack.add(3);
myStack.add(4);

System.out.println(myStack);
lastAndRemove(myStack);
System.out.println(myStack);

}

public static void lastAndRemove(Stack<Integer> s){

s.remove(s.lastElement());

}
}

Answer 1

If you're trying to both get and remove the last element use the Stack.pop() method. Using remove in this fashion may result in a bug when you have multiple elements in the stack with the same value as remove() will remove the first that it finds. You don't need to create a method that already exists.

https://docs.oracle.com/javase/7/docs/api/java/util/Stack.html

Answer 2

You can store the element before removing in a variable and then remove it from the stack and at last return the value stored in the variable. This might be helpful
https://code.sololearn.com/cbYQB7H1BR3p/?ref=app

Answer 3

XXX thanks!