LA2-3

What is the entry point of a C# Console Application?

• Main()
• Start()
• Begin()
• Execute()
• Run()

Which of the following is a reference type in C#?

• int
• double
• char
• class
• bool

What is the purpose of the 'using' keyword in C#?

• Define variables
• Include namespaces
• Loop through collections
• Create objects
• None of the above

Which of the following is NOT a value type in C#?

• int
• bool
• char
• string
• float

Which namespace contains fundamental classes in C#?

• System
• Core
• CSharp
• Main
• Data

What is Boxing in C#?

• Converting object to struct
• Converting class to interface
• Converting a value type to object
• Converting array to list
• None of the above

Which keyword is used to define constants in C#?

• static
• readonly
• constant
• const
• final

What is the default value of a reference type if not initialized?

• Converting object to struct
• null
• empty string
• undefined
• None of the above

Which of the following represents an array declaration in C#?

• int arr()
• array<int> arr
• int[] arr
• arr<int>[]
• None of the above

Which of these conversions requires explicit casting?

• int to double
• float to double
• char to int
• double to int
• None of the above