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Welcome to the Indexers and Exception Handling MCQs Page

Dive deep into the fascinating world of Indexers and Exception Handling with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Indexers and Exception Handling, a crucial aspect of C# Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Indexers and Exception Handling, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within C# Programming.

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Check out the MCQs below to embark on an enriching journey through Indexers and Exception Handling. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of C# Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Indexers and Exception Handling. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Indexers and Exception Handling MCQs | Page 5 of 13

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Q41.
Which of the following statements is correct about the C#.NET code snippet given below?

enum per
{
    married, 
    unmarried, 
    divorced, 
    spinster
}
per.married = 10; 
Console.WriteLine(per.unmarried);
Discuss
Answer: (d).The program will report an error since an enum element cannot be assigned a value outside the enum declaration.
Q42.
Which of the following is the correct output for the C#.NET code snippet given below?

enum color: int
{ 
    red,
    green, 
    blue = 5, 
    cyan,
    magenta = 10, 
    yellow 
}
Console.Write( (int) color.green + ", " ); 
Console.Write( (int) color.yellow );
Discuss
Answer: (b).1, 11
Q43.
An enum can be declared inside a class, struct, namespace or interface.
Discuss
Answer: (a).True
Q44.
Which of the following CANNOT be used as an underlying datatype for an enum in C#.NET?
Discuss
Answer: (c).float
Q45.
Which of the following statements are correct about enum used in C#.NET?

1. Every enum is derived from an Object class.
2. Every enum is a value type.
3. There does not exist a way to print an element of an enum as a string.
4. Every enum is a reference type.
5. The default underlying datatype of an enum is int.
Discuss
Answer: (a).1, 2, 5
Q46.
Which of the following statements is correct about the C#.NET code snippet given below?

enum color : byte
{
    red = 500,
    green = 1000,
    blue = 1500
}
Discuss
Answer: (c).Since 500, 1000, 1500 exceed the valid range of byte compiler will report an error.
Q47.
Which of the following is the correct output for the C#.NET code snippet given below?

enum color
{
    red,
    green,
    blue 
}
color c = color.red;
Type t;
t = c.GetType();
string[ ]str;
str = Enum.GetNames(t);
Console.WriteLine(str[ 0 ]);
Discuss
Answer: (a).red
Q48.
Which of the following statements are correct about the C#.NET code snippet given below?

1. To define a variable of type enum color in Main(), we should use the statement, color c; .
2. enum color being private it cannot be used in Main().
3. We must declare enum color as public to be able to use it outside the class Sample.
4. To define a variable of type enum color in Main(), we should use the statement, Sample.color c; .
5. We must declare private enum color outside the class to be able to use it in Main().

namespace CompSciBitsConsoleApplication
( 
class Sample
{ 
    private enum color : int
    { 
        red, 
        green, 
        blue
    }
    public void fun()
    {
        Console.WriteLine(color.red); 
    }
}
class Program
{ 
    static void Main(string[ ] args)
    { 
        // Use enum color here
    } 
} 
}
Discuss
Answer: (b).2, 3, 4
Discuss
Answer: (b).enum is a value type.
Q50.
Which of the following statements are correct about an enum used in C#.NET?

1. An enum can be declared inside a class.
2. An enum can take Single, Double or Decimal values.
3. An enum can be declared outside a class.
4. An enum can be declared inside/outside a namespace.
5. An object can be assigned to an enum variable.
Discuss
Answer: (a).1, 3, 4

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