Constants and literals - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a constant integer named MAX with value 100.

C

const int MAX = [1];

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

Aint

B100

CMAX

Dconst

Attempts:

3 left

💡 Hint

Common Mistakes

Using variable name instead of value

Forgetting to assign a value

The constant MAX is assigned the literal value 100.

2fill in blank

medium

Complete the code to assign the character literal 'A' to the variable letter.

C

char letter = [1];

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A'A'

B"a"

CA

D"A"

Attempts:

3 left

💡 Hint

Common Mistakes

Using double quotes for characters

Omitting quotes around the character

Character literals in C use single quotes, like 'A'.

3fill in blank

hard

Fix the error in the code by completing the constant declaration for PI with value 3.14.

C

const float PI = [1];

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

A3,14

B"3.14"

C3.14f

D3.14

Attempts:

3 left

💡 Hint

Common Mistakes

Using comma instead of dot for decimals

Using string literal instead of numeric literal

Float literals should have an 'f' suffix to specify float type in C.

4fill in blank

hard

Fill both blanks to create a constant double named gravity with value 9.8.

C

const [1] gravity = [2];

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

Adouble

Bfloat

C9.8

D9.8f

Attempts:

3 left

💡 Hint

Common Mistakes

Using float type instead of double

Adding 'f' suffix to double literal

Use 'double' type for gravity and assign the literal 9.8 without suffix.

5fill in blank

hard

Fill all three blanks to declare a constant string pointer named greeting with value "Hello".

C

const [1] [2] = [3];

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

Achar

B*

C"Hello"

Dstring

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'string' type which is not standard in C

Missing pointer symbol '*' for string pointer

Strings in C are char pointers. Use 'const char * greeting = "Hello";'.