The document provides an overview of the .NET framework and C# programming. It discusses how programs worked before .NET, the components of the .NET framework, and versions of the .NET framework. It then covers various aspects of C# programming like writing C# programs, variables and expressions, flow control, more on variables, and debugging and error handling.

1. Maha EL-basuony Dot Net Framework-C Sharp

2. Agenda

3. Before Dot Net Framework -Program Set of commands in logical order -LLL(Low Level Language) collection of zeros & ones

4. -Your applications written by High Level Language (HLL) But Your machine (Computer , Mobile , Projector ……..etc) Understand only Low Level Language (LLL) So Compiler Used

5. Java Your Application “VB6” Compiler Compiler JVM

6. DOT NET Framework

7. Java VB.net P.net C#.net MSIL CLR Compiler JVM

8. .NET Framework Versions

9. C Sharp

10. -Writing a C# Program -Variables & Expressions -Flow Control -More About Variables -Functions -Debugging & Error Handling

11. Writing a C# Program Console.Write(“Hello World ”) ;

12. Console properties

13. Variables & Expressions Declaring Variables <Type> <VarName>; <Type> <VarName>=Value; <Type> <Var1Name>,<Var2Name>…..;

14. Variables types Integer Variables

15. Float Variables String Variables

16. The basic variable naming rules are as follows: 1-First character of a variable name must be either (a letter, an underscore character ( .( _ ), at symbol ( @ )) 2-Subsequent characters may be letters, underscore characters, or numbers. 3-keywords that have a specialized meaning to the C# compiler, such as using ,namespace keywords

17. For example, the following variable names are fine: myBigVar VAR1 _test These are not, however: 99BottlesOfBeer namespace It’s-All-Over

18. Accept Values From User

19. Expressions Mathematical Operators

22. Assignment Operators

23. Examples

24. Operator Precedence

26. Flow Control Boolean comparisons

27. Some other Boolean operators

28. The go to statement is used as follows: goto < label Name > Labels are defined as follows: < label Name >

31. -If statement -Ternary operator -Switch statement

32. If statement if (expression) { do something } If-Else if (expression) statement1 else Statement2

34. Ternary operator < expression > ? < resultIfTrue > : < resultIfFalse >

35. Switch statement switch (expression) { case constant-expression: //your code here Break; default: //your code here Break; }

37. -For statement -While Statement -do-while statement

38. For statement for (initializers; expression; iterators) statement

41. While Statement while (expression) statement

42. do-while statement do statement while (expression);

43. -Implicit conversion -Explicit conversion Type Conversion -Implicit conversion

44. -Explicit conversion -Casting -Convert

46. -Enumerations - Structs -Arrays

47. Enumerations enum type Name { value1 , value2 , value3 , ... valueN } enum typeName : underlyingType { value1 value2 value3 ... valueN }

48. enum typeName : underlyingType { value1 = actualVal1 value2 = actualVal2 value3 = actualVal3 ... valueN = actualValN } enum typeName : underlyingType { value1 = actualVal1 value2 = value1 value3 ... valueN = actualValN }

50. Structs struct < typeName > { < memberDeclarations > }

53. -Dot Net Framework -Writing a C# Program -Variables & Expressions -Flow Control -More About Variables

54. Q & A Thanks