C# Programming - Properties

Exercise :: Properties - General Questions

  • Properties - General Questions
6. 

If Sample class has a Length property with get and set accessors then which of the following statements will work correctly?

  1. Sample.Length = 20;
  2. Sample m = new Sample(); 
    m.Length = 10;
  3. Console.WriteLine(Sample.Length);
  4. Sample m = new Sample(); 
    int len;
    len = m.Length;
  5. Sample m = new Sample(); 
    m.Length = m.Length + 20;

A. 1, 3
B. 2, 4, 5
C. 4 only
D. 3, 5

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

7. 

Which of the following is the correct way to implement a write only property Length in a Sample class?

A.
class Sample
{
    public int Length
    {
        set
        {
            Length = value;
        } 
    } 
}
B.
class Sample
{
    int len;
    public int Length
    {
        get
        {
            return len;
        }
        set
        {
            len = value;
        } 
    } 
}
C.
class Sample
{
    int len;
    public int Length
    {
        WriteOnly set
        {
            len = value;
        } 
    } 
}
D.
class Sample
{
    int len;
    public int Length
    {
        set
        {
            len = value;
        }
    } 
}

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

8. 

A property can be declared inside a namespace or a procedure.

A. True
B. False

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

9. 

If a Student class has an indexed property which is used to store or retrieve values to/from an array of 5 integers, then which of the following are the correct ways to use this indexed property?

  1. Student[3] = 34;
  2. Student s = new Student(); 
    s[3] = 34;
  3. Student s = new Student(); 
    Console.WriteLine(s[3]);
  4. Console.WriteLine(Student[3]);
  5. Student.this s = new Student.this(); 
    s[3] = 34;

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

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

10. 

If Sample class has a Length property with set accessor then which of the following statements will work correctly?

A.
Sample m = new Sample(); 
int l;
l = m.Length;
B.
Sample m = new Sample(); 
m.Length = m.Length + 20;
C.
Sample.Length = 20;
D.
Console.WriteLine (Sample.Length);
E.
Sample m = new Sample(); 
m.Length = 10;

Answer: Option E

Explanation:

No answer description available for this question. Let us discuss.