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C# Programming - Properties

@ : Home > C# Programming > Properties > General Questions

Exercise

  • General Questions
"When ambition ends, happiness begins."
- (Proverb)
1. 

A property can be declared inside a class, struct, Interface.
A. TrueB. False
2. 

Which of the following statements is correct about properties used in C#.NET?
A. A property can simultaneously be read only or write only.
B. A property can be either read only or write only.
C. A write only property will have only get accessor.
D. A write only property will always return a value.
3. 

A Student class has a property called rollNo and stu is a reference to a Student object and we want the statement stu.RollNo = 28 to fail. Which of the following options will ensure this functionality?
A. Declare rollNo property with both get and set accessors.
B. Declare rollNo property with only set accessor.
C. Declare rollNo property with get, set and normal accessors.
D. Declare rollNo property with only get accessor.
E. None of the above
4. 

If a class Student has an indexer, then which of the following is the correct way to declare this indexer to make the C#.NET code snippet given below work successfully? 

Student s = new Student(); 
s[1, 2] = 35;
A. 
class Student
{ 
    int[ ] a = new int[5, 5]; 
    public property WriteOnly int this[int i, int j]
    { 
        set
        { 
            a[i, j] = value;
        } 
    }
}
B. 
class Student
{ 
    int[ , ] a = new int[5, 5]; 
    public int property WriteOnly
    { 
        set
        { 
            a[i, j] = value;
        } 
    } 
}
C. 
class Student
{ 
    int[ , ] a = new int[5, 5];
    public int this[int i, int j] 
    {
        set
        { 
            a[i, j] = value;
        } 
    } 
}
D. 
class Student
{ 
    int[ , ] a = new int[5, 5];
    int i, j; 
    public int this
    { 
        set
        { 
            a[i, j] = value;
        } 
    } 
}
5. 

Which of the following statements are correct?

  1. The signature of an indexer consists of the number and types of its formal parameters.
  2. Indexers are similar to properties except that their accessors take parameters.
  3. Accessors of interface indexers use modifiers.
  4. The type of an indexer and the type of its parameters must be at least as accessible as the indexer itself.
  5. An interface accessor contains a body.

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

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