Hi friends in this article I will explain about the difference
between Structure and Class.I think it may useful in interview Questions.I
explained about the interviews questions in the previous
articles Interview Questions in VB.NET, .NET
Framework., ASP.NET interview Questions , Interview Questions on SQL Server , ASP.NET Interview Questions Part II and Interview Questions on SQL Server Part II
What are the difference between Structure and Class?
A structure must have always the default parameter less constructor be defined as public but a class might have one, so you can't define a private parameter less constructor
See the below figure to know about the difference between reference type and value type.
Go to previous interview question what are the data access namespaces in .NET?
I think you like my blog why are waiting following me on facebook fan page Aspdotnet-roja
What are the difference between Structure and Class?
Class
|
Structure
|
Class is
group of common objects that share common properties and relationships.
|
Structure
is a collection of different types of data type.
|
Class
Have memory overhead per new instance
|
Structure
Do not have a memory overhead per new instance - unless 'boxed'
|
Class members
are private by default.
|
Structure
members are public by default.
|
Classes are
reference type i.e. they are stored on heap
|
Structure
are value type i.e. they are stored on stack
|
Class can
be inherited.
|
Structure
cannot be inherited.
|
Class is
better choice for complex data structure
|
Structure
should be used when you want to use a small data structure
|
Class elements
can be declared as protected
|
Structure
elements cannot be declared as protected
|
Classes are
terminated i.e. GC does call finalize method for them
|
Structure
are not terminated i.e. GC does not call finalize method for them
|
Class does
require constructor.
|
Structure
does not require constructor.
|
A structure must have always the default parameter less constructor be defined as public but a class might have one, so you can't define a private parameter less constructor
struct Sample {
private Sample() // compile-time error { } } class Me { private Sample() // runs Ok{ } |
See the below figure to know about the difference between reference type and value type.
Go to previous interview question what are the data access namespaces in .NET?
I think you like my blog why are waiting following me on facebook fan page Aspdotnet-roja
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