C#

Question 1

C# pronounced as

Answer 1

C-Sharp

Question 2

It is an object-oriented programming language provided by Microsoft that runs on .Net Framework.

Answer 2

C#

Question 3

different types of secured and robust applications that we can develop:

Answer 3

Window applications
Web applications
Distributed applications
Web service applications
Database applications etc.

Question 4

Who Developed C#

Answer 4

Anders Hejlsberg

Question 5

The development of C# started in the _________

Answer 5

late 1990s

Question 6

It was influenced by several programming languages like

Answer 6

c++
Java
Delphi

Question 7

History: In order

Answer 7

1999
2000
2002
2003
2007
2010
2012
2015
2019
2020

Question 8

Anders Hejlsberg and his team at Microsoft began developing C#

Answer 8

1999

Question 9

C# was officially announced in July 2000 at the Professional Developers Conference (PDC) hosted by Microsoft.

Answer 9

2000

Question 10

C# 1.0 was released in 2002 alongside the .NET Framework 1.0, featuring basic language constructs, garbage collection, properties, and events.

Answer 10

2002

Question 11

Generics, anonymous methods, and iterators, enhancing productivity and expressiveness

Answer 11

2003

Question 12

C# 3.0 introduced Language Integrated Query (LINQ) along with lambda expressions, extension methods, etc,

Answer 12

2007

Question 13

C# 4.0 was released with .NET Framework 4.0,

Answer 13

2010

Question 14

C# 5.0 was released with .NET Framework 4.5, which brought asynchronous programming support.

Answer 14

2012

Question 15

These versions introduced various features such as string interpolation, expression-bodied members, pattern matching, tuples, etc.

Answer 15

2015

Question 16

Reference types, asynchronous streams, default interface methods, and more, aiming to improve safety, performance, and productivity.

Answer 16

2019

Question 17

Records, init-only properties, top-level statements, and pattern matching enhancements, for productivity and code clarity.

Answer 17

2020

Question 18

IDE IN C#

Answer 18

1. Visual Studio Code
2. Rider
3. Tutorialspoint

Question 19

8 Basic Syntax in C#

Answer 19

1. The using keyword
2. The class keyword
3. Member variables
4. Member Functions
5. Statements
6. Identifier
7. Comments
8. Console.WriteLine() and ReadLine()

Question 20

• is the first statement in any C# program.
• It is used for including the namespaces in the program.
• A program can include multiple using statements.

Answer 20

USING KEYWORD

Question 21

• is used for declaring a class.
• Inside the class, you can define various members such as fields, properties, methods, constructors, and more.

Answer 21

CLASS KEYWORD

Question 22

• are declared within a class and are used to store data associated with instances of that class.
• It holds state information for objects of the class.

Answer 22

Member variables

Question 23

are declared within the class.

Answer 23

Member Functions

Question 24

are a set of statements that perform a specific task.

Answer 24

Functions

Question 25

is a source code instruction that declares a type or instructs the program to do something.

Answer 25

Statement

Question 26

A simple statement is terminated by a __________

Answer 26

semicolon (;)

Question 27

are names that you choose for variables, functions, classes, methods, and so on.

Answer 27

Identifiers

Question 28

TRUE OR FALSE: The alphabetic (a through z, A through Z) and underscore (_) characters can appear at any position.

Answer 28

true

Question 29

Digits can appear in the first position but everywhere else.

Answer 29

false (it cannot)

Question 30

3 types of comments in c#

Answer 30

1. Single-line comments 2. Delimited comments 3. Documentation comments

Question 31

___________ method is used to print text to the console while Console.

Answer 31

Console. WriteLine()

Question 32

is used to read the complete string until the user presses the Enter key or a newline character is found.

Answer 32

ReadLine()

Question 33

Data types in c#

Answer 33

1. Int 2. float 3. char 4. long 5. bool 6. string 7. double

Question 34

Stores whole numbers from -2,147,483,648 to 2,147,483,647

Answer 34

Int

Question 35

Stores fractional numbers. Sufficient for storing 6 to 7 decimal digits

Answer 35

Float

Question 36

Stores a single character/letter, surrounded by single quotes

Answer 36

char

Question 37

Stores whole numbers from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807

Answer 37

long

Question 38

True or false: You need to put "L" at the end of a data type long.

Answer 38

True

Question 39

Stores true or false values

Answer 39

bool

Question 40

Stores a sequence of characters, surrounded by double quotes

Answer 40

String

Question 41

Stores fractional numbers. Sufficient for storing 15 decimal digits

Answer 41

double