You are developing an application that includes methods named ConvertAmount and TransferFunds.
You need to ensure that the precision and range of the value in the amount variable is not lost when the
TransferFunds() method is called.
Which code segment should you use?
A.
Option A
B.
Option B
C.
Option C
D.
Option D
Explanation:
The double keyword signifies a simple type that stores 64-bit floating-point values.
The float keyword signifies a simple type that stores 32-bit floating-point values.
double (C# Reference)
A – it’s incorrect answer.
With A – ConvertAmount(2.02f) – output will be 2,01999998092651
With B – ConvertAmount(2.02f) – output will be 2.02 without lost
Correct answer is B
16
2
b
5
1
B
Decimal will store the value as a floating decimal point type.
http://net-informations.com/q/faq/float.html
7
1
Answer is B
class Program
{
static void Main(string[] args)
{
Question15 q15 = new Question15();
q15.ConvertAmount(2.02f);
Console.ReadKey();
}
}
public class Question15
{
public void ConvertAmount(float amount)
{
TransferFunds((decimal)amount);
}
private void TransferFunds(decimal funds)
{
Console.WriteLine(funds);
}
}
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1
B should be correct: https://stackoverflow.com/questions/618535/difference-between-decimal-float-and-double-in-net
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1