C# general on classes and methods

Question

1.50/5 (2 votes)

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System.DateTime currentTime = System.DateTime.Now;

This line above invokes the now method of the System class.
1. However, new is not used why?
2. the bracket after Now does not exist why?

The way I think, it should be
System.DateTime currentTime = new System.DateTime.Now();

Posted 6-Sep-11 11:25am

jackel7777

Updated 6-Sep-11 18:48pm

Prerak Patel

v2

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Comments

Sergey Alexandrovich Kryukov 7-Sep-11 1:17am

1) Why do you think new is needed; 2) Why you think it "should be"? -- no, it shouldn't.
--SA

3 solutions

Solution 2

Now is a static property(thus no ()) which gives you the current time.

~~new DateTime() is not possible because the constructor is not public.~~

As OP pointed out DateTime does indeed have a public constructor + alot more, don't know what I were thinking o_O sorry

Posted 6-Sep-11 11:30am

Simon Bang Terkildsen

Updated 6-Sep-11 15:12pm

v3

Comments

AspDotNetDev 6-Sep-11 18:13pm

Comment from OP (originally posted as an answer): "the constructor of the DateTime class is public."

Philippe Mori 6-Sep-11 19:16pm

Half good response --- half points.

Simon Bang Terkildsen 6-Sep-11 21:14pm

Thank you Philippe, I had probably voted it down due to the extremely incorrect information about the constructor(s) of DateTime

Philippe Mori 6-Sep-11 22:19pm

Points readjusted!!!

Sergey Alexandrovich Kryukov 6-Sep-11 23:58pm

Sorry, Simon -- try to forget this answer for a while and read it later using a fresh glance. Will you easily understand what are you talking about? I doubt it. Sorry, no points this time. And Mika provided comprehensive answer already. Thanks for understanding.
--SA

Solution 4

You don't read language manual — why?

—SA

Posted 6-Sep-11 17:55pm

Sergey Alexandrovich Kryukov

Comments

Wendelius 7-Sep-11 1:10am

Now that's a good question, 5.

Sergey Alexandrovich Kryukov 7-Sep-11 1:15am

:-) Thank you, Mika.
--SA

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Wendelius · Accepted Answer · 2011-09-06T11:28:00

Solution 1

1. However, new is not used why?

Because Now is a static member of the datetime class.

2. the bracket after Now does not exist why?

Now is a property not a method. Parenthesis are not used with properties.

Some references:
- static (C# Reference)[^]
- Properties (C# Programming Guide)[^]

Posted 6-Sep-11 11:28am

Wendelius

Updated 6-Sep-11 11:32am

v2

Comments

Sergey Alexandrovich Kryukov 6-Sep-11 23:55pm

All correct, my 5. I also answered, please see :-)
--SA

Wendelius 7-Sep-11 1:09am

Thanks SA