การ Implement Stack ใน C#

Stack ใช้ LIFO (Last-In-First-Out) มีเมธอด Push และ Pop

เมธอดหลักของ Stack:

Push เพิ่มข้อมูล Pop ลบข้อมูล

ตัวอย่าง

using System;
using System.Collections;
namespace CollectionsApplication {
    class Program {
        static void Main(string[] args) {
            Stack st = new Stack();
            st.Push('A');
            st.Push('B');
            st.Push('C');
            st.Push('D');
            Console.WriteLine("Current stack: ");
            foreach (char c in st) { Console.Write(c + " "); }
            Console.WriteLine();
            st.Push('P');
            st.Push('Q');
            Console.WriteLine("The next poppable value in stack: {0}", st.Peek());
            Console.WriteLine("Current stack: ");
            foreach (char c in st) { Console.Write(c + " "); }
            Console.WriteLine();
            Console.WriteLine("Removing values....");
            st.Pop();
            st.Pop();
            st.Pop();
            Console.WriteLine("Current stack: ");
            foreach (char c in st) { Console.Write(c + " "); }
        }
    }
}

ผลลัพธ์

Current stack: D C B A
The next poppable value in stack: Q
Current stack: Q P D C B A
Removing values....
Current stack: C B A