[Answer] Review Exercises #3

Copy and paste this code to answer the question on the www.dotnetstarter.blogspot.com

using System;
using System.Collections.Generic;
using System.Text;

namespace Problem_3
{
    class Program
    {
        static void Main(string[] args)
        {
            string a, b, c, d;
            int A, B, C, D;
            Console.Write("Enter integer 1: ");
            a = Console.ReadLine();
            Console.Write("Enter integer 2: ");
            b = Console.ReadLine();
            Console.Write("Enter integer 3: ");
            c = Console.ReadLine();
            Console.Write("Enter integer 4: ");
            d = Console.ReadLine();
            Console.WriteLine("");

            A=Int32.Parse(a);
            B = Int32.Parse(b);
            C = Int32.Parse(c);
            D =Int32.Parse(d);

            MathUtil Math = new MathUtil(A, B, C, D);
            Console.WriteLine("Sum: "+Math.sum);
            Console.WriteLine("Product: " + Math.multi);
            Console.WriteLine("Difference: " + Math.diff);
            Console.WriteLine("Qoutient: " + Math.qout);
            Console.ReadLine();
        }
    }
    public class MathUtil
    {
        #region "fields"
        int num1;
        int num2;
        int num3;
        int num4;
        float P3, P4;
        #endregion

        #region "constructor"
        public MathUtil(int num1,int num2,int num3,int num4)
        {
            this.num1 = num1;
            this.num2 = num2;
            this.num3 = num3;
            this.num4 = num4;
            this.P3 = num3;
            this.P4 = num4;
        }
        #endregion
        #region "R-only Propertys"
        public int sum
        {  
            get
            {
                return num1+num2+num3+num4;
            }           
        }
        public int multi
        {
            get
            {
                return num1 * num2 * num3 * num4;
            }
        }
        public int diff
        {
            get
            {
                return num1 - num2;
            }
        }
        public float qout
        {
            get
            {
                
                return P3 / P4;
            }
        }
        #endregion
    }
}