Type conversion Multiple Choice Questions (MCQ) PDF - 60

MCQ 296: Select a solution for the following statements:
static void Main(string[] args) { int num1 = 20000; int num2 = 50000; long total; total = num1 + num2; Console.WriteLine("Total is : " +total); Console.ReadLine(); }

1. Compiler will generate runtime error
2. Conversion is implicit type, no error generation
3. Specifying data type for conversion externally will solve the problem
4. None of the mentioned

MCQ 297: What will the following code result into
byte destinationVar; short sourceVar = 281; destinationVar = (byte)sourceVar; Console.WriteLine("sourceVar val: {0}", sourceVar); Console.WriteLine("destinationVar val: {0}", destinationVar);

1. sourceVar val: 281 destinationVar val: 25
2. sourceVar val: 281 destinationVar val: 281
3. sourceVar val: 281 destinationVar val: ?
4. sourceVal val:281 destinationVar val: e^25

MCQ 298: The type that cannot be used as a data type for an enum in C#.NET is

1. short type
2. double
3. int
4. float

MCQ 299: Choose the correct statement regarding the code
struct Book { private String name; private int noofpages; private Single price; } Book b = new Book();

1. The structure variable 'b' will be created on the heap
2. We can add a zero-argument constructor to the above structure.
3. When the program terminates, variable b will get garbage collected.
4. The structure variable b will be created on the stack.

MCQ 300: The correct of the following regarding interfaces in C# is

1. One class can implement only one interface.
2. In a program if one class implements an interface then no other class in the same program can implem
3. From two base interfaces a new interface cannot be inherited.
4. Properties can be declared inside an interface.