Programming in C# Quiz 1

What is the correct way to declare a variable that stores whole numbers in C#?

• string number = 5;

• int number = 5;

• char number = 5;

• bool number = 5;

In C#, what does Console.ReadLine() return?

• An integer

• A boolean

• A string

• A character

Which of these is NOT a valid data type in C#?

• float

• string

• stringInteger

• double

What does Convert.ToInt32() do in C#?

• Creates a new integer

• Converts a string to an integer

• Makes numbers bigger

• Rounds decimal numbers

What is the entry point of a C# program?

• The first line of code

• The Main() method

• The class name

• The namespace declaration

Which symbol is used to end most C# statements?

• .

• :

• ;

• ,

Which of these is NOT a type of Windows application in Visual Studio?

• Windows Forms

• WPF

• HTML Forms

• Console Application

What language is used for designing interfaces in WPF?

• HTML

• CSS

• XAML

• XML

What happens if you try to store a decimal number in an integer variable?

• The program crashes

• The decimal part is dropped

• The number is rounded up

• Nothing happens

Which of these will correctly display "Hello" to the console?

• Console.Write("Hello");

• print("Hello");

• System.out.print("Hello");

• output("Hello");