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Csharp Interview Questions :: Integer Data Types :: Basic




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1.

Does the output remain same or different for both cases?

1)
char l ='k';
float x = 19.0f;
int y;
y = (l / Convert.ToInt32(x));
Console.WriteLine(y);


2)
char l ='k';
float x = 19.0f;
int y;
y = Convert.ToInt32(l / x);
console.WriteLine(y);


A) Yes

B) No



2.

To improve execution speed of a program, which datatype should be more preferred for storing a simple number like 45?


A) sbyte

B) short

C) int

D) long



3.

Select error in the given program:

Static Void Main(String[] args)
{
const int m = 200;
int n = 20;
const int k = n / 10 * 100 * n ;
Console.WriteLine(m * k);
Console.ReadLine();
}


A) ‘k’ should not be declared constant

B) Expression assigned to ‘k’ should be a constant

C) Expression (m * k) is invalid

D) ‘n‘ is declared in invalid format



4.

Datatype “UInt” is derived from which .NET class?


A) System.Int16

B) System.UInt32

C) System.UInt64

D) System.UInt16



5.

Size of Long Datatype in bytes in C# .net?


A) 8

B) 4

C) 2

D) 1



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