C#

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

namespace Project1
{
    class Program
    {
        public static void Main()
        {
            Console.Write("Enter principal: ");
            decimal p = Convert.ToDecimal(Console.ReadLine());
            if (p < 0)
            {  
                Console.WriteLine("Principal cannot be negative");
                p = 0;
            }

            Console.Write("Enter interest rate: ");
            decimal i = Convert.ToDecimal(Console.ReadLine());
            if (i < 0)
            {
                Console.WriteLine("Interest cannot be negative");
                i = 0;
            }

            Console.Write("Enter time (in years): ");
            int years = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("\nPrincipal = " + p
               + "\nInterest  = " + i + "%"
               + "\nTime  = " + years + " years\n");


            Console.WriteLine("\n\nYear\tRate\t   Amount\tInterest\tNew Amount");
            Console.WriteLine("===========================================================");
            
            int year = 1;
            
            while (year <= years)
            {
                decimal interestPaid = p * (i / 100);

                decimal amount = p + interestPaid;

                p += interestPaid;

                p = decimal.Round(p, 2);

                interestPaid = decimal.Round(interestPaid, 2);

                amount = decimal.Round(amount, 2);

                Console.WriteLine(year + "\t" + i + "%\t" + ((p - interestPaid).ToString().PadLeft(10)) + "\t" + interestPaid.ToString().PadLeft(8) + "\t" + p.ToString().PadLeft(8));

                year++;
            }
        }
    }
}

using System;
using System.Collections.Generic;

namespace SortedListStructure
{
    public struct Product
    {
        public string model;
        public string description;
        public int weight;
        public int height;
        public int width;
        public int length;
    };

    class Program
    {
        static void Main(string[] args)
        {
            SortedList<string, Product> sl = new SortedList<string, Product>();
            Product test;
            test.model = "1X-3PA2Q94";
            test.description = "Tractor Motor Sensor";
            test.weight = 3;
            test.height = 3;
            test.width = 3;
            test.length = 3;

            sl.Add(test.model, test);

            string m = test.model;
            if (sl.ContainsKey(m))
            {
                Console.WriteLine("Description: {0}, Weight: {1}", sl[m].description, sl[m].weight);
            }
            else
            {
                Console.WriteLine("{0} not found", m);
            }

            Console.ReadLine();
        }
    }
}