This keyword behavior in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print the current object's name using this keyword.

C Sharp (C#)

public class Person {
    public string Name;
    public void PrintName() {
        Console.WriteLine(this.[1]);
    }
}

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

Athis

BName

Cname

DPrintName

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase 'name' instead of 'Name' which is case-sensitive.

Trying to use 'this' alone without a member name.

The this keyword refers to the current object instance. To access the Name field, use this.Name.

2fill in blank

medium

Complete the constructor to assign the parameter to the instance variable using this keyword.

C Sharp (C#)

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

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

Amodel

BCar

Cthis

DModel

Attempts:

3 left

💡 Hint

Common Mistakes

Assigning to the parameter instead of the instance variable.

Using lowercase 'model' on the left side which refers to the parameter.

The instance variable is Model. Use this.Model to refer to it and assign the parameter model.

3fill in blank

hard

Fix the error by completing the method to return the current object's description using this keyword.

C Sharp (C#)

public class Book {
    public string Title;
    public string GetDescription() {
        return this.[1];
    }
}

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

ATitle

Btitle

CGetDescription

Dthis

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase 'title' which does not match the field name.

Returning this alone which is not a string.

The field is named Title with uppercase T. Use this.Title to access it correctly.

4fill in blank

hard

Fill both blanks to create a method that compares the current object's age with another object's age using this keyword.

C Sharp (C#)

public class Animal {
    public int Age;
    public bool IsOlderThan(Animal other) {
        return this.[1] [2] other.Age;
    }
}

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

AAge

B>

C<

Dother

Attempts:

3 left

💡 Hint

Common Mistakes

Using other on the left side instead of this.

Using the wrong comparison operator.

Use this.Age to get the current object's age and compare it with other.Age using the greater than operator >.

5fill in blank

hard

Fill all three blanks to create a method that updates the current object's score only if the new score is higher, using this keyword.

C Sharp (C#)

public class Player {
    public int Score;
    public void UpdateScore(int newScore) {
        if (newScore [1] this.[2]) {
            this.[3] = newScore;
        }
    }
}

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

A<

BScore

C>

DnewScore

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong comparison operator like '<' instead of '>'.

Assigning to newScore instead of this.Score.

The method checks if newScore is greater than this.Score. If yes, it updates this.Score to newScore.