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

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare an integer variable named age and initialize it with 25.

C Sharp (C#)

int [1] = 25;

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

Avalue

Bnumber

Cage

Dcount

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable name different from 'age'.

Forgetting to declare the type 'int'.

The variable name should be age as requested. The code declares an integer variable age and sets it to 25.

2fill in blank

medium

Complete the code to declare a string variable named name and initialize it with "Alice".

C Sharp (C#)

string [1] = "Alice";

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Atitle

Bname

Clabel

Dtext

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different variable name than 'name'.

Missing the string quotes around "Alice".

The variable name should be name to store the string "Alice".

3fill in blank

hard

Fix the error in the code by completing the variable declaration for a double named price initialized to 19.99.

C Sharp (C#)

double [1] = 19.99;

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

Aprice

Bcost

Camount

Dvalue

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different variable name than 'price'.

Missing the type declaration 'double'.

The variable name should be price as requested. This fixes the error by declaring the correct variable.

4fill in blank

hard

Fill both blanks to declare a boolean variable named isActive and initialize it to true.

C Sharp (C#)

[1] [2] = true;

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

Abool

Bint

CisActive

Dstring

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong type like int or string.

Using a variable name other than 'isActive'.

The type is bool and the variable name is isActive. This declares a boolean variable set to true.

5fill in blank

hard

Fill all three blanks to declare a character variable named grade and initialize it with the letter 'A'.

C Sharp (C#)

[1] [2] = [3];

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

Achar

Bgrade

C'A'

Dstring

Attempts:

3 left

💡 Hint

Common Mistakes

Using string instead of char.

Using double quotes instead of single quotes for the character.

Using a different variable name than 'grade'.

The type is char, the variable name is grade, and the value is the character 'A'. This correctly declares and initializes the variable.