PriorityStudent

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Wintellect.PowerCollections;
using System.Collections;

namespace _11.PriorityStudent
{
    public class Student : IComparable
    {
        private string name;
        private int age;
        private bool paidSemesterOnline;

        public string Name
        {
            get { return this.name; }
            set { this.name = value; }
        }
        public int Age
        {
            get { return this.age; }
            set { this.age = value; }
        }

        public bool PaidSemesterOnline
        {
            get { return this.paidSemesterOnline; }
            set { this.paidSemesterOnline = value; }
        }

        public Student()
        {
            age = 0;
            name = "";
            paidSemesterOnline = false;
        }

        public Student(int age, string name, bool paidSemesterOnline = false)
        {
            this.age = age;
            this.name = name;
            this.paidSemesterOnline = paidSemesterOnline;
        }

        public override string ToString()
        {
            string output = "Student:" + "\r\n";
            output = output + string.Format("    Name: {0}", this.name) + "\r\n";
            output = output + string.Format("    Age: {0}", this.age) + "\r\n";
            output = output + string.Format("    PaidOnline: {0}", this.paidSemesterOnline);
            return output;
        }

        public int CompareTo(object obj)
        {
            if (!(obj is Student))
            {
                throw new ArgumentException(
                "A Student object is required for comparison.");
            }
            return -1 * this.paidSemesterOnline.CompareTo(((Student)obj).paidSemesterOnline);
        }
    }

    class PriorityStudent
    {
        static void Main(string[] args)
        {
            OrderedBag<Student> studentQueue = new OrderedBag<Student>();
            Student pesho = new Student(19,"pesho");

            Student kiril = new Student(23,"kiril",true);

            Student ivan = new Student(21,"ivan");

            studentQueue.Add(pesho);
            studentQueue.Add(kiril);
            studentQueue.Add(ivan);

            foreach (var student in studentQueue)
            {
                Console.WriteLine(student);
            }
        }
    }
}