Basic data types - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare an integer variable named age.

C

int [1];

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

Acount

Bnumber

Cvalue

Dage

Attempts:

3 left

💡 Hint

Common Mistakes

Using a keyword as a variable name

Forgetting the semicolon at the end

The code declares an integer variable named age using the int keyword.

2fill in blank

medium

Complete the code to declare a floating-point variable named price.

C

float [1];

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

Aamount

Bprice

Ccost

Dvalue

Attempts:

3 left

💡 Hint

Common Mistakes

Using an integer type instead of float

Misspelling the variable name

The code declares a floating-point variable named price using the float keyword.

3fill in blank

hard

Fix the error in the code by completing the declaration of a character variable named grade.

C

char [1];

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

Amark

Bletter

Cgrade

Dscore

Attempts:

3 left

💡 Hint

Common Mistakes

Using a string type instead of char

Using an incorrect variable name

The code declares a character variable named grade using the char keyword.

4fill in blank

hard

Fill both blanks to declare a double variable named distance and initialize it to 100.5.

C

double [1] = [2];

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

Adistance

B100.5

CdistanceValue

D100

Attempts:

3 left

💡 Hint

Common Mistakes

Using an integer value instead of a floating-point number

Using a different variable name

The code declares a double variable named distance and initializes it with the value 100.5.

5fill in blank

hard

Fill all three blanks to declare a boolean variable named isValid, initialize it to true, and print it using printf.

C

#include <stdio.h>
#include <stdbool.h>

int main() {
    bool [1] = [2];
    printf("Is valid: %d\n", [3]);
    return 0;
}

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

AisValid

Btrue

Dfalse

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to include stdbool.h

Using True instead of true

Printing the variable name incorrectly

The code declares a boolean variable isValid, initializes it to true, and prints its value using printf. The %d format specifier prints the integer value of the boolean.