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C# Programming :: Properties

Properties - General Questions

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

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

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  2. An Account class has a property called accountNo and acc is a reference to a bank object and we want the C#.NET code snippet given below to work. Which of the following options will ensure this functionality?

    acc.accountNo = 10;  Console.WriteLine(acc.accountNo);

     

     

    3. A.

    Declare accountNo property with both get and set accessors
    B.

    Declare accountNo property with only accessors
    C.

    Declare accountNo property with get ,set and normal accessors.
    D.

    Declare accountNo property with only set accessor.
    E.

    None of these .

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  3. Which of the following statements is correct about properties used in C#.NET?

    4. A.
    Every property must have a set accessor and a get accessor.
    B.
    Properties cannot be overloaded.
    C.
    Properties of a class are actually methods that work like data members.
    D.
    A property has to be either read only or a write only.

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

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

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  5. Which of the folowing does an indexer allow to index in the same way as an array?

    1. A class
    2. A property
    3. A struct
    4. A function
    5. An interface

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

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  6. An Employee class has a property called age and emp is reference to a Employee object and we want the statement Console.WriteLine(emp.age) to fail. Which of the following options will ensure this functionality?

    7. A.

    Declare age property with only get accessor.
    B.

    Declare age propery with only set accessor.
    C.

    Declare age property with both get and set accessor.
    D.

    Declare age property with get, set and normal accessors.
    E.

    None of the above.

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