stackkk.java

import java.util.Stack;

public class stackkk {
   public static void pushAtbottom(int data,Stack<Integer> s){
      if(s.isEmpty()){
         s.push(data);
         return;
      }
      int top=s.pop();
      pushAtbottom(data, s);
      s.push(top);
   }
   public static void reverse(Stack<Integer>s){
      if(s.isEmpty()){
         return;
      }
      int top=s.pop();
      reverse(s);
      pushAtbottom(top, s);
   }
    public static void main(String[] args) {
        Stack<Integer> s=new Stack<>();
        s.push(1);
        s.push(2);
        s.push(3);
        reverse(s);
        while(!s.isEmpty()){
            System.out.println(s.peek());
            s.pop();
        }
    }
}