using System;
using System.Collections;
class Program
{
static void Main() {
Queue queue = new Queue();
queue.Enqueue("c#");
queue.Enqueue("c++");
queue.Enqueue("c");
queue.Enqueue("java");
Object[] arr = queue.ToArray();
foreach(Object obj in arr) {
Console.WriteLine(obj);
}
}
}
/*
run:
c#
c++
c
java
*/