Novice Problem

June 3, 2007

 

Novice Problem

 

Hi Guys

 

I got the following program from the website. Address is given. I couldn’t understand following statements. Please anybody explain.

 

public Time1(System.DateTime dt)

1) Normally in the parentheses built-in data type and variable must come instead System.DateTime dt is coming. Please explain.

 

System.DateTime currentTime = System.DateTime.Now;

2) I couldn’t understand above one at all. Please explain.

 

Thank you

 

//Method overloading test

//http://www.java2s.com/Code/CSharp/Language-Basics/Methodoverloadingtest.htm

 

using System;

 

namespace MethodOverloading

{

      public class Time1

      {

            // private member variables

            private int Year;

            private int Month;

            private int Date;

            private int Hour;

            private int Minute;

            private int Second;

 

            // public accessor methods

            public void DisplayCurrentTime()

            {

                  Console.WriteLine("{0}/{1}/{2} {3}:{4}:{5}",

                        Month, Date, Year, Hour, Minute, Second);

            }

 

            // constructors

            public Time1(System.DateTime dt)    //???????????????????

            {

                  Year =      dt.Year;

                  Month =     dt.Month;

                  Date =      dt.Day;

                  Hour =      dt.Hour;

                  Minute =    dt.Minute;

                  Second =    dt.Second;

            }

 

            public Time1(int Year, int Month, int Date,

                  int Hour, int Minute, int Second)

            {

                  this.Year =     Year;

                  this.Month =    Month;

                  this.Date =     Date;

                  this.Hour =     Hour;

                  this.Minute =   Minute;

                  this.Second =   Second;

            }

      }

 

      public class MethodOverloadingTester

      {

            public void Run()

            {

                  System.DateTime currentTime = System.DateTime.Now;    //????????????????

 

                  Time1 time1 = new Time1(currentTime);

                  time1.DisplayCurrentTime();

 

                  Time1 time2 = new Time1(2000,11,18,11,03,30);

                  time2.DisplayCurrentTime();

            }

 

            static void Main()

            {

                  MethodOverloadingTester t = new MethodOverloadingTester();

                  t.Run();

            }

      }

}