Record inheritance in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a record named Person.

C Sharp (C#)

public record [1](string Name, int Age);

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Ainterface

Bclass

Cstruct

DPerson

Attempts:

3 left

💡 Hint

Common Mistakes

Using class or struct instead of record.

Forgetting to name the record.

The keyword record is used to declare a record type. Here, Person is the record's name.

2fill in blank

medium

Complete the code to make Employee inherit from Person record.

C Sharp (C#)

public record Employee(string Name, int Age, string Position) : [1](Name, Age);

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Aobject

BEmployee

CPerson

Drecord

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong base record name.

Omitting the base constructor call.

The Employee record inherits from Person using the colon : followed by the base record name and parameters.

3fill in blank

hard

Fix the error in the code to correctly override the ToString method in the Employee record.

C Sharp (C#)

public record Employee(string Name, int Age) : Person(Name, Age)
{
    public override string [1]() => $"Employee: {Name}, {Age}";
}

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AToString

BToStr

CtoString

DPrint

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase toString which does not exist in C#.

Using incorrect method names like ToStr or Print.

The method to override for string representation is ToString with capital T and S.

4fill in blank

hard

Fill both blanks to create a derived record Manager that inherits from Employee and adds a Department property.

C Sharp (C#)

public record Manager(string Name, int Age, string Position, string [1]) : Employee(Name, Age, Position)
{
    public string [2] { get; init; } = [1];
}

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ADepartment

BPosition

CAge

DName

Attempts:

3 left

💡 Hint

Common Mistakes

Using different names for the property and initializer.

Using base record property names instead of the new property.

The Manager record adds a Department property and passes other parameters to the Employee base record.

5fill in blank

hard

Fill all three blanks to override the PrintDetails method in Manager, calling base method and adding department info.

C Sharp (C#)

public record Manager(string Name, int Age, string Position, string Department) : Employee(Name, Age, Position)
{
    public void PrintDetails()
    {
        base.[1]();
        Console.WriteLine($"Department: [2]");
        Console.WriteLine($"Position: [3]");
    }
}

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APrintDetails

BDepartment

CPosition

DToString

Attempts:

3 left

💡 Hint

Common Mistakes

Calling a wrong base method name.

Using incorrect property names in the output.

The PrintDetails method calls the base method, then prints Department and Position properties.