Structures - General Questions

Which of the following statements are correct about Structures used in C#.NET?

1 A Structure can be declared within a procedure.

2 Structs can implement an interface but they cannot inherit from another struct.

3 struct members cannot be declared as protected.

4 A Structure can be empty.

5 It is an error to initialize an instance field in a struct.

Which of the following will be the correct output for the program given below?

namespace IndiabixConsoleApplication
{
struct Sample
{
public int i;
}
class MyProgram
{
static void Main(string[] args)
{
Sample x = new Sample();
Sample y;
x.i = 9;
y = x;
y.i = 5;
Console.WriteLine(x.i + " " + y.i);
}
}
}

Which of the following are true about classes and struct?

1 A class is a reference type, whereas a struct is a value type.

2 Objects are created using new, whereas structure variables can be created either using new or without using new.

3 A structure variable will always be created slower than an object.

4 A structure variable will die when it goes out of scope.

5 An object will die when it goes out of scope.

Which of the following statements are correct about the structure declaration given below?

struct Book
{
private String name;
protected int totalpages;
public Single price;
public void Showdata()
{
Console.WriteLine(name + " " + totalpages + " " + price);
}
Book()
{
name = " ";
totalpages = 0;
price = 0.0f;
}
}
Book b = new Book();

1 We cannot declare the access modifier of totalpages as protected.

2 We cannot declare the access modifier of name as private.

3 We cannot define a zero-argument constructor inside a structure.

4 We cannot declare the access modifier of price as public.

5 We can define a Showdata() method inside a structure.

Which of the following statements is correct?

Which of the following will be the correct output for the C#.NET program given below?

namespace IndiabixConsoleApplication
{
struct Sample
{
public int i;
}
class MyProgram
{
static void Main(string[] args)
{
Sample x = new Sample();
x.i = 10;
fun(ref x);
Console.Write(x.i + " ");
}
public static void fun(ref Sample y)
{
y.i = 20;
Console.Write(y.i + " ");
}
}
}

Which of the following statements is correct about the C#.NET code snippet given below?

struct Book
{
private String name;
private int noofpages;
private Single price;
}
Book b = new Book();

When would a structure variable get destroyed?