Constructors and initialization in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a constructor for the class.

C Sharp (C#)

public class Person {
    public string Name;
    [1] Person(string name) {
        Name = name;
    }
}

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

Apublic

Bvoid

Cstatic

Dthis

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'void' as constructor return type

Using 'static' keyword for constructor

Omitting access modifier

The constructor must have the public access modifier to be accessible and properly defined.

2fill in blank

medium

Complete the constructor to initialize the Age field.

C Sharp (C#)

public class Person {
    public int Age;
    public Person(int age) {
        [1] = age;
    }
}

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

Athis.Age

Bage

CPerson.Age

DAge

Attempts:

3 left

💡 Hint

Common Mistakes

Assigning parameter to itself

Using class name instead of this

Omitting this and causing ambiguity

Use this.Age to refer to the instance field and assign the parameter value.

3fill in blank

hard

Fix the error in the constructor to properly initialize the field.

C Sharp (C#)

public class Car {
    public string Model;
    public Car(string model) {
        Model = [1];
    }
}

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

Athis.Model

BModel

Cmodel

DCar.Model

Attempts:

3 left

💡 Hint

Common Mistakes

Assigning field to itself

Using class name to access instance field

Using 'this' on the right side instead of parameter

The parameter model should be assigned to the field Model.

4fill in blank

hard

Fill both blanks to create a constructor that initializes both fields.

C Sharp (C#)

public class Book {
    public string Title;
    public int Pages;
    public Book([1] title, [2] pages) {
        Title = title;
        Pages = pages;
    }
}

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

Apublic

Bprivate

Cint

Dstring

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong access modifier

Omitting parameter types

Using field types as parameter names

Constructor parameters need types and the constructor should be public.

5fill in blank

hard

Fill all three blanks to create a constructor that initializes fields with different names.

C Sharp (C#)

public class Student {
    public string Name;
    public int Grade;
    [1] Student([2] studentName, int studentGrade) {
        Name = [3];
        Grade = studentGrade;
    }
}

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

Apublic

BstudentName

Dstring

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong parameter names

Omitting types

Assigning wrong variables

The constructor is public, parameters need types, and the field Name is assigned the parameter studentName.