1. .NET Language Supports

2. .NET Language Support Operating System Common Language Runtime Base Class Library ADO.NET and XML ASP.NET Web Forms Web Services Mobile Internet Toolkit WindowsForms Common Language Specification VBC++C#J#… Visual Studio.NET

3. .NET Language Support Overview Common Language Runtime Base Framework ADO.NET: Data and XML Web Services User Interface VB C++C# ASP.NET J#COBOL…

4. IDE & CLR Integrated Development Environment – Single Solution Explorer, Toolbox, and Debugger – IntelliSense ® statement completion and squigglies – Create multi-language solutions Common Language Runtime – Microsoft: Visual Basic ®, C#, C++, J#, JScript ® – 3 rd Party: APL, Cobol, Component Pascal, Eiffel, Fortran, Haskell, Mercury, Oberon, Oz, Perl, Python, RPG, Scheme, Smalltalk, Standard ML

5. Increased Productivity Simplifies mixed-language development RAD across the board – Desktop – Web – Server – Mobile End-to-end debugging support across – Languages – Projects – Processes – Machines

6. Language Enhancements Visual Basic.NET – Fully object oriented, supports free threading – Structured exception handling Visual C#.NET – Increased productivity for C++ developer – Component-oriented, type-safe Visual C++.NET – Attribute based programming – Managed Extensions for C++ Visual J#.NET – Java language for.NET Platform

7. Visual Basic.NET

8. Visual Basic.NET Overview Modern, Powerful, True OOP – Inheritance, overloading, shadowing, delegates, attributes, hierarchical name spaces Robust – Strict type checking, initialize variables at declaration, variable declaration types fixed Consistent – Single assignment operator, parenthesis use simplified Simplified – Legacy constructs removed

9. Classes & Inheritance Inheritance supported – Derive from a single base class – Implicitly inherits from System.Object Declarable classes Overriding – New implementation for base class method – Overrides keyword – MyBase refers base class – Me refers current class Overloading – Multiple versions of a class member – Based on parameter types

10. Demo 1: Visual Studio.NET Integrated Development Environment

11. Visual C#.NET

12. Visual C#.NET Overview Strong C++ heritage – Immediately familiar to C++ and Java developers – Allows C-style memory management and pointers First component-oriented language in C family – Properties, methods, indexers, delegates, events – Design-time and runtime attributes Enables one-stop programming – No header files, IDL – Embeddable in ASP.NET

13. Component-Oriented What defines a component? – Properties, methods, events – Design-time and runtime information – Integrated help and documentation First class support in C# – Not naming patterns, adapters, etc. – Not external files Easy to build and consume

14. Comparison to Visual Basic Syntactic Differences – Visual Basic is NOT case sensitive In C# but not in Visual Basic – Pointers, shift operators, inline documentation – Overloaded operators, unsigned integers In Visual Basic but not in C # – Select Case, Interface implementation – Dynamic arrays, modules, optional parameters for I = 1 To 10 ‘ for loop ‘ for loop Next I for (i=1;i<11;i++) { // for loop }

15. Visual C++.NET

16. Visual C++.NET Compiler & Language Optimizations – Whole Program Optimization – Optimized inline assembly integration – Loop unrolling heuristics Runtime checks – Buffer Overrun – Stack Corruption – Shortened Converts Attributes – domain specific programming – Radically simplifies COM+ and IDL – Integrated with.NET Framework attributes model

17. Managed Extensions Full access to the.NET Framework from C++ It’s still C++ – All enhancements are compatible extensions – Nothing from C++ has been changed or removed Enables incremental migration to.NET – Existing code can be recompiled as IL – Mix managed code within existing applications Power to drop “to the metal” when needed

18. Native Libraries MFC/ATL – Improved MFC/ATL integration – Integrated Web Service client – Windows ® XP, GDI+, Crypto, NT Security, Perfmon, Accessibility ATL Server – ATL framework for Web Services and Web applications – Stencil-based UI generation with integrated XML/HTML designer Enhanced STL – Better conformance and error messages – Significantly improved documentation

19. Visual J#.NET

20. Visual J#.NET Java-language for.NET Native support for XML Web services Fully integrated with Visual Studio.NET development environment Full access to the.NET Framework – ASP.NET, ADO.NET, Windows Forms – Integration with >20 other languages Protection of existing investments – Use java language syntax on.NET – Move applications and skills forward

21. Java-language Support.NET Runtime Win32 SourceConverter Legacy Java Source BinaryConverter Java Binary MSIL Java Source targeting.NET MSIL.NET Frameworks Subset of JDK 1.1.4 & VJ++ 6.0 Libraries

22. .NET Extensions To be CLS compliant Syntax extensions required for CLS – ubyte – @attribute – For attaching.NET attributes Support for consuming.NET constructs: – Properties, Events, Delegates, Value types, Enums

23. Summary.NET Language Support – Multi-language platform, 22 supported Visual Basic.NET – More power, more productivity Visual C++.NET – Power and flexibility for managed, native code Visual C#.NET – Productivity for the C developer Visual J#.NET – Java language support for.NET Platform

24. The End ….. Thank You …..