986854243

import java.util.*;


public class QueueSample{
  
  public static void main(String args[]){
    
    Queue<Character> queVar = new LinkList<Character>();
    System.out.println("Adding new character to queue.");
    queVar.add('A');
    que.Var.add('B');
    // peek() is used to give first element , will not remove from queue
    
    System.out.println(queVar.peek() + " is First element in que.");
    // A is First element in que.
    
    // poll() is used to give first element and removes it from queue 
    System.out.println(queVar.poll() + "is First element in que." );
    // A is First element in que.
    
    System.out.println(queVar.poll() + "is First element in que.");
    // B is First element in que.
    
  }
}