Read-only and write-only properties in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to make the property read-only.

C Sharp (C#)

public class Person {
    private string name;
    public string Name {
        get { return [1]; }
    }
}

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

Aname

BName

Cthis.name

Dnull

Attempts:

3 left

💡 Hint

Common Mistakes

Returning the property itself causes infinite recursion.

Returning null does not provide the stored value.

The get accessor returns the private field name, making the property read-only.

2fill in blank

medium

Complete the code to make the property write-only.

C Sharp (C#)

public class Account {
    private decimal balance;
    public decimal Balance {
        set { [1] = value; }
    }
}

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

ABalance

Bthis.Balance

Cvalue

Dbalance

Attempts:

3 left

💡 Hint

Common Mistakes

Assigning to the property itself causes infinite recursion.

Assigning to 'value' is invalid.

The set accessor assigns the incoming value to the private field balance, making the property write-only.

3fill in blank

hard

Fix the error in the read-only property to avoid infinite recursion.

C Sharp (C#)

public class Product {
    private int stock;
    public int Stock {
        get { return [1]; }
    }
}

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

A0

Bstock

Cthis.Stock

DStock

Attempts:

3 left

💡 Hint

Common Mistakes

Returning the property itself causes infinite recursion.

Returning a constant like 0 does not reflect the actual value.

Returning the private field stock avoids infinite recursion caused by returning the property itself.

4fill in blank

hard

Fill both blanks to create a read-only property with a private setter.

C Sharp (C#)

public class Employee {
    public int Id { get; [1] }
    public string Name { get; [2] }
}

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

Aprivate set

Bset

Cprivate get

Dpublic set

Attempts:

3 left

💡 Hint

Common Mistakes

Using public set makes the property writable from outside.

Using private get is invalid for read-only properties.

Using private set allows the property to be set only inside the class, making it effectively read-only from outside.

5fill in blank

hard

Fill all three blanks to create a write-only property with a private getter.

C Sharp (C#)

public class Secret {
    private string data;
    public string Data {
        [1] { return data; }
        [2] { data = value; }
    }
    private string GetData() {
        return [3];
    }
}

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

Aprivate get

Bset

Cdata

Dget

Attempts:

3 left

💡 Hint

Common Mistakes

Using public get makes the property readable from outside.

Returning the property itself causes recursion.

The property has a private getter and a public setter, making it write-only from outside. The private method returns the private field data.