Why enums are needed in C Sharp (C#) - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare an enum named Days.

C Sharp (C#)

enum [1] { Sunday, Monday, Tuesday }

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AMonths

BWeek

CDays

DColors

Attempts:

3 left

💡 Hint

Common Mistakes

Using a name unrelated to the values like Months or Colors.

Leaving the enum name blank.

The enum name should be Days to represent days of the week.

2fill in blank

medium

Complete the code to assign the enum value Monday to variable today.

C Sharp (C#)

Days today = Days.[1];

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ASunday

BMonday

CFriday

DTuesday

Attempts:

3 left

💡 Hint

Common Mistakes

Using a day not in the enum like Friday.

Using the enum name without the member.

To assign Monday, use Days.Monday.

3fill in blank

hard

Fix the error in the code to compare enum values correctly.

C Sharp (C#)

if (today == Days.[1]) { Console.WriteLine("It's Monday"); }

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Amonday

BMon

CMONDAY

DMonday

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase or abbreviated names that don't match the enum.

Using strings instead of enum members.

Enum members are case-sensitive and must match exactly, so use Monday.

4fill in blank

hard

Fill both blanks to create a switch statement that prints the day name.

C Sharp (C#)

switch (today) {
  case Days.[1]:
    Console.WriteLine("Sunday");
    break;
  case Days.[2]:
    Console.WriteLine("Monday");
    break;
}

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ASunday

BMonday

CTuesday

DFriday

Attempts:

3 left

💡 Hint

Common Mistakes

Using days not declared in the enum like Friday.

Using lowercase or abbreviated names.

The switch cases must match the enum members Sunday and Monday.

5fill in blank

hard

Fill all three blanks to create a dictionary mapping enum days to their short names.

C Sharp (C#)

var dayShortNames = new Dictionary<Days, string> {
  { Days.[1], "Sun" },
  { Days.[2], "Mon" },
  { Days.[3], "Tue" }
};

Drag options to blanks, or click blank then click option'

ASunday

BMonday

CTuesday

DFriday

Attempts:

3 left

💡 Hint

Common Mistakes

Including days not in the enum like Friday.

Mismatching enum members and short names.

The dictionary keys must be enum members Sunday, Monday, and Tuesday to match the short names.