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Csharp Interview Questions :: Expression Type Conversion :: Basic




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1.

For the given set of code, select the correct option from the following statements. 

static void Main(string[] args)
{
int num1 = 50;
int num2 = 100;
long total;
total = num1 + num2;
Console.WriteLine("Total is : " +total);
Console.ReadLine();
} 


A) Compiler will throw runtime error

B) No error generation since the conversion is implicit type

C) To solve the problem we need to specify the datatype conversion externally

D) None of the mentioned



3.

Why we need to convert a data type in C#?


A) To store one data type value into a variable of another data type

B) To get desired data

C) To avoid run time error during change or conversion of data type

D) None of the mentioned



4.

Select the wrong statement about structures in C#.NET?


A) Structures can be declared within a procedure

B) Structures cannot inherit from another structure but they can implement an interface

C) Structure members cannot be decorated with protected access specifier

D) A structure cannot be empty



5.

Select the correct statement from the following, why structures are defined as value types but not reference types?


A) Structures are allocated on stack.

B) Structures consists of small amount of data in them. Hence using stack for declaration of such variables is not a problem.

C) All of the mentioned.

D) None of the mentioned.



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