The space required for structure variables is allocated on stack. True False

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Question
The space required for structure variables is allocated on stack.
Options
A. True
B. False

Correct Answer

True

Structures problems

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

namespace CuriousTabConsoleApplication
{ 
    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 + " "); 
        } 
    } 
}

Discuss

2. Which of the following is the correct way to define a variable of the type struct Emp declared below?
```
struct Emp
{
    private String name; 
    private int age; 
    private Single sal;
}
```
1. Emp e(); e = new Emp();
2. Emp e = new Emp;
3. Emp e; e = new Emp;
4. Emp e = new Emp();
5. Emp e;
Options
A. 1, 3
B. 2, 5
C. 4, 5
D. 1, 2, 4

Discuss

4. Which of the following statements is correct?
Options
A. A struct never declares a default constructor.
B. All value types in C# inherently derive from ValueType, which inherits from Object.
C. A struct never declares a default destructor.
D. In C#, classes and structs are semantically same.

Discuss

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

namespace CuriousTabConsoleApplication
{ 
    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); 
        } 
    } 
}

Discuss

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

class Trial
{ 
    int i;
    Decimal d;
}
struct Sample
{
    private int x;
    private Single y;
    private Trial z;
}
Sample ss = new Sample();

Options
A. ss will be created on the heap.
B. Trial object referred by z will be created on the stack.
C. z will be created on the heap.
D. Both ss and z will be created on the heap.
E. ss will be created on the stack.

Discuss

7. 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();

Options
A. The structure variable b will be created on the heap.
B. We can add a zero-argument constructor to the above structure.
C. When the program terminates, variable b will get garbage collected.
D. The structure variable b will be created on the stack.
E. We can inherit a new structure from struct Book.

Discuss

8. 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.
Options
A. 1, 2, 4
B. 2, 3, 5
C. 2, 4
D. 1, 3

Discuss

9. Which of the following will be the correct result of the statement b = a in the C#.NET code snippet given below?

struct Address
{
    private int plotno;
    private String city; 
}
Address a = new Address(); 
Address b; 
b = a;

Options
A. All elements of a will get copied into corresponding elements of b.
B. Address stored in a will get copied into b.
C. Once assignment is over a will get garbage collected.
D. Once assignment is over a will go out of scope, hence will die.
E. Address of the first element of a will get copied into b.

Discuss

10. Which of the following is the correct way to implement a read only property Length in a Sample class?
Options

class Sample
{
    int len;
    public int Length
    {
        get
        {
            return len;
        } 
    } 
}

class Sample
{
    public int Length
    {
        get
        {
            return Length;
        } 
    } 
}

class Sample
{
    int len;
    public int Length
    {
        get
        {
            return len;
        } 
        set
        {
            len = value;
        } 
    } 
}

class Sample
{
    int len;
    public int Length
    {
        Readonly get
        {
            return len;
        } 
    } 
}

Discuss

Correct Answer:

class Sample
{
    int len;
    public int Length
    {
        get
        {
            return len;
        } 
    } 
}

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CuriousTab

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The space required for structure variables is allocated on stack.

Structures problems

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CuriousTab

CuriousTab

Discussion

The space required for structure variables is allocated on stack.

Structures problems

Search Results

More in C# Programming:

Aptitude

Engineering

Programming

Reasoning

Links

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