c#

Question 1

c#: To create a class, type

Answer 1

class ClassName
{

}

Question 2

c#: To write a method that doesnt return anything, type

Answer 2

static void MethodName()
{

}

Question 3

c#: the first mandatory method called in any script is

Answer 3

static void Main()
{

}

Question 4

c#: To create a comment, type

Answer 4

//

Question 5

c#: .NET is

Answer 5

the library ecosystem that c# can import and use

Question 6

c#: You must end all lines with a

Answer 6

;

Question 7

c#: A common compiler for c# is

Answer 7

mono

Question 8

c#: You can compile c# scripts using mono by typing

Answer 8

mcs ScriptName.cs

Question 9

c#: You run c# scripts on mac or linux, type

Answer 9

mono ScriptName.exe

Question 10

c#: To initialize a string variable, type

Answer 10

string varName = “string”;

Question 11

c#: To write to the console, type

Answer 11

System.Console.Write(“string”);

System.Console.WriteLine(“string”);

Question 12

c#: To get input into the console, type

Answer 12

System.Console.ReadLine();

Question 13

c#: Methods are

Answer 13

capitalized

Question 14

c#: Method calls in c# require you to

Answer 14

call the namespace, then the class, then the method

NameSpaceName.ClassName.MethodName();

Question 15

c#: To set the namespace, type

Answer 15

namespace NameSpaceName
{

}

Question 16

c#: To avoid having to write the namespace, type

Answer 16

using NameSpaceName

note: No ;

Question 17

c#: Namespaces can be named

Answer 17

NameSpaceName.NameSpaceName.NameSpaceName

Question 18

c#: To enter the c# repl, type

Answer 18

csharp

Question 19

c#: The types are

Answer 19

int
double
string

Question 20

c#: To convert a number string into an int, type

Answer 20

int.Parse(“10”)

Question 21

c#: types can also have

Answer 21

methods.

e. g.
int. Parse(“10”)

Question 22

c#: To initialize a variable with a boolean value, type

Answer 22

bool varName = false;

Question 23

c#: To create a while loop, type

Answer 23

bool varName = true;

while(varName == true)
{
Console.WriteLine(“string”);
}

Question 24

c#: To create an if else statement, type

Answer 24

if (varName == "string") {
  ...
}
else
{
  ...
}

Question 25

c#: To create an if, else if, else statement, type

Answer 25

if (varName == "string") {
  ...
}
else if
{
  ...
}
else
{
  ...
}

Question 26

c#: To make a loop start back from the beginning, type

Answer 26

continue;

Question 27

c#: To create a try catch statement, type

Answer 27

try
{

}
catch(ExceptionName)
{

}

Question 28

c#: variables are only

Answer 28

accessible from within the curly brackets they were declared in. Not in parallel or parent brackets, only child brackets.

Question 29

c#: To convert a string to lower case, type

Answer 29

stringVar.ToLower()

Question 30

c#: The type that can hold decimals is

Answer 30

double

Question 31

c#: To declare a double, type

Answer 31

double varName = 10.0;

Question 32

c#: To make a variable available in parent brackets

Answer 32

declare the variable in them and just initialize it in the child brackets

Question 33

c#: Any equation using both an int and a double returns

Answer 33

a double

Question 34

c#: Any equation of two ints will return

Answer 34

an int

Question 35

c#: To cast an double into an int, type

Answer 35

(int)(10.0)

Question 36

c#: Casting a number does not

Answer 36

round it. It truncates.

Question 37

c#: To create a variable without declaring it’s type, type

Answer 37

var varName = 0;

Question 38

c#: DNX stands for

Answer 38

the .Net execution environment

Question 39

c#: When debugging always ensure that

Answer 39

all lines end with ;

Question 40

c#: To add references in Xamarin

Answer 40

Hover over the References folder
Click gear button
In the menu click “add references”

Question 41

c#: “using” statements automatically

Answer 41

call the dispose function on the object after it is used

Question 42

c#: To send an http get request, type

Answer 42

using System;
using System.Net;
using System.IO;
using System.Net.Http;

using (WebClient client = new WebClient())
{
  htmlCode = client.DownloadString("http://site.com");
}

Question 43

c#: To initialize an int array var with array values, type

Answer 43

int[] varName = new int[5] {1,2,3,4,5}
or
var varName = new int[5] {1,2,3,4,5}