net and .net framework
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.NETFran n
ework
ro uc on
MahrG.Mohyuddin
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.NETand.NETFr
Whatis.NET?
Whatis.NETFramewor
Whatare.NETTechnol
ApplicationPlatformson
.NETvs.JAVA
mework
?
gies?
.NET
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Whatis.NET?
AsetofMicrosoftsoftwarete information,people,systems,
Providesanabstractionte a s.
Enableshighlevelapplicatio
Adevelopmentplatform:inte developsoftware.
AThebiggestchangeinthe
WindowsNTreplacedDOS.
hnologiesforconnecting anddevices.
hnologyforalltypesof
integration.
faces,componentsandtoolsto
icrosoftplatformsince
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Whatis.NETFra
Providesthefoundation .NETbasedapplication
Consistsoftwocompon
ommon anguagerunt .NETFrameworkclassl
ework
forbuildingandrunning
nts
me brary
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CommonLangua (CLR)
Avirtualmachinecom framework.
Microsoft'simplement
LanguageInfrastructu Managesexecutionof
Supports alllanguages
eRuntime
onentof.NET
tionoftheCommon
e(CLI) thecode.
hichareCLScompliant
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.NETFramework
FCL exposesfeatureso
Provideslibraryofclass windows-basedandXM
.NETFrameworkclassli ADO.NET(ActiveXDat
ASP.NET(ActiveServe
XMLWebServices
UserInterfaces
lassLibrary
theruntime.
saccessedbyallWeb, Webserviceapplications
braryincludes: Objects)
Pages)
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Framework,Languag s,AndTools
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PrincipalDesignFe
Interoperability
CommonRuntimeEn
Lan ua eInde enden
BaseClassLibrary
SimplifiedDeployment
Security
Portability
tures
ine
ce
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HowThe.NetFra
VisualBasicApplications
.NETFr
Data
ADO.
Applications
VisualC++Applications Common
Runt
WebS
Wind
SourcecodecompilesasMSIL
eworkWorks
mework
ypes
NET
anguageime
rvices
ows
.NETPlatformCode
JITcompilerproducesmachinelanguage
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CompilingandEx ManagedCode
SourceCode
LanguageCompiler
Compilatio
J
Co
Native
Code
Execution
cuting
MicrosoftIntermediate
Language(MSIL)
IT
piler
Thefirsttimeeachmethodiscalled
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.NETTechnologie
The.NETFramework WithsupportforXML
VisualStudio.NET
SupportingVisualBasic .NETMyServices
The.NETEnterprise
BizTalkServer2000 SQLServer2000
CommerceServer2000
ebservices
.NET,C#,C++,and JScript
ervers
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ApplicationPlatfo
BrowserApps
WebServiceApps
Standar
GUIServices
TransactionServices
Sc
Operatin
RuntimeE
rmsToday
OtherApps
LocalApps
Library
ebripting
DataAccess
More
System
vironment
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The.NETFramew
BrowserApps
WebServiceApps
.NETFramewo
WindowsForms
EnterpriseServices
AS
Win
CommonLan
rk
OtherApps
LocalApps
kClassLibrary
.NET ADO.NET More
ows
uageRuntime
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TheCompetition: Environment
BrowserApps
WebServiceApps
StandardJa
Swing EnterpriseJavaBeans
Jav
Windows,Sola
JavaVirtual
heJava
OtherApps
LocalApps
vaPackages
aServerages
JDBC More
is,Linux,others
achine(VM)
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DataTypesinthe
TheCLRdefinesthe (CTS)
Alllanguagesbuiltonth
Typesaredividedinto Valuetypes:
Referencetypes:
CLR
ommonTypeSystem
CLRusetheCTS
twocategories
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Illustratingth
Object
B te
Class
Interface
Bo
Char
De
String
Array
Delegate
ReferenceTypes
Others
CTS
ValueType
Int16 Sin leUInt16
lean
imal
DoublInt32
Int64
UInt32
UInt64
ValueTypes
Enum
Structure
Others
NET d J R i
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.NETandJava :R Environments
.NETFramework Intermediatelanguageis
Providesjust-in-time(JIT
ere sno n erpre er n Java
Intermediatelanguageis
Originaldesignhadtarg
JavaVMswithJITcompil
ntime
MSIL
compilation
e
bytecode
tedinterpretationofbytecode
ationarenowalsoused
C il ti i th NET
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Compilationinth Environment
ClassX
ClassY
ClassZ
SourceCode
M
MSIL
forCl
.NET
Com iler C#
tadataforClassesX,YandZ
DLLorEXE
ode
ssX
MSILCode
forClassY
MSILCode
forClassZ
VB.NET,etc.)
Th St t f
NET
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TheStructureofa FrameworkAppli
Class
Method
ClassX
Method 1
AppDoma
Assem
JITCom
Method
MethodMethod
Method3Method 2
Loader
CommonLangu
MetadataforClass
.NET ation
ClassZ
1 Method1
n
bly
iler
4
32 Method 2
geRuntime
GarbageCollector
sX,YandZ
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Languagesin.NE
All.NETlanguagesar
Allhavemuchincomm
VisualStudio.NETsup
C# VisualBasic.NET
C++
JScript
Otherlanguageswilla
builtontheCLR
n
ports:
lsobeavailable
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AnInterfaceand
publicinterfaceICalc{intadd(intx,inty);
intsubtract(intx,i
}
publicclassCalculator:
intadd(intx,inty)
returnx+y;
}
intsubtract(intx,i
returnx y;
}
lassinC#
ty);
ICalc{
{
ty){
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A Simple Comparison :
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ASimpleCompariSimilarities
Similarities: C-derivedsyntax
Object-oriented
Singleimplementationi Multipleinterfaceinherit
Built-inimmutableStrin
son :
heritance nce
type
A Simple Comparison :
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ASimpleCompariDifferences
C#adds: Attributes
Properties
Directmemoryaccess Inunsafecode
son :
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C#
Anewlanguagedesig .NETFramework (Tha
SyntaxbasedonC/C++
BuiltontheCLR,with SupportfortheCTS:
Classes
Inheritance
Methodoverloading
edexpresslyfortheiswhatMicrosoftsays)
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VB.NET
Redesignedfromthe with:
FullsupportfortheCTS
AllotherCLRfeatures Classes
Inheritance
Methodoverloading
Itsfunctionallyverym
roundupfortheCLR,
chlikeC#
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VB.NETExample
ClassComputeImplementsIMath
FunctionFactorial(By
ClassComputeImplementsIMath
FunctionFactorial(By
IntegerImplementsIMath.
DimIAsInteg
DimResultAs
ForI=2ToFResult=R
Next
IntegerImplementsIMath.
DimIAsInteg
DimResultAs
ForI=2ToFResult=R
Next
alFAsInteger)AsalFAsInteger)As
actorial
r
nteger=1
sult*I
actorial
r
nteger=1
sult*I
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.NETFramework
Accessiblefromanyla CLR
WritteninC#
Organizedintonames Allofwhicharebelowth
Contains:
ASP.NET ADO.NET
WindowsForms
lassLibrary
nguagetargetingthe
aces eSystemnamespace
A Small Part of th System
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ASmallPartofth Namespace
System
Int32,
Data WindowsWeb,
Connection,DataSet,
UI Services Forms
System
XML EnterpriseServices
XmlDocument,
ServicedComponent,
NET vs Java : St ndard
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.NETvs.Java :St Libraries
.NETFrameworkclas DefinedbyMicrosoft
SomewhatWindows-ori
Organizedintoahierarc J2EE
DefinedbySunandthe
Notboundtoanyoperat
Definedaspackagesan
ndard
library
nted
hyofnamespaces
JavaCommunityProcess
ingsystem
dinterfaces
J2EE and NET Architectures
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J2EEand.NETArchit ectures
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Summary
NETFrameworkconsists .NETissetoftechnologie
allthesetechnologies.
CLRensuresadherencet
JITcompilerconvertsILin CLRmanagessecurity,th .NETisthefutureofapplic
Windows
fCLRandtheFCL ,.NETFrameworkiscoreof
theCLS
assemblytonativecode. eads,GC ationdevelopmenton