Floating point types (float, double, decimal) in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a variable of type float.

C Sharp (C#)

[1] number = 3.14f;

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

Afloat

Bvar

Cdouble

Ddecimal

Attempts:

3 left

💡 Hint

Common Mistakes

Using double or decimal keyword instead of float.

Forgetting the 'f' suffix on the number.

In C#, to declare a float variable, you use the float keyword and suffix the number with f.

2fill in blank

medium

Complete the code to declare a variable of type double.

C Sharp (C#)

[1] value = 3.14159;

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

Adecimal

Bvar

Cdouble

Dfloat

Attempts:

3 left

💡 Hint

Common Mistakes

Using float keyword without suffix 'f'.

Using decimal keyword which requires suffix 'm'.

Double is the default type for floating-point numbers without suffix in C#. Use double keyword to declare.

3fill in blank

hard

Complete the code to declare a variable of type decimal.

C Sharp (C#)

[1] price = 19.99m;

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

Afloat

Bdecimal

Cvar

Ddouble

Attempts:

3 left

💡 Hint

Common Mistakes

Using float or double keyword with 'm' suffix.

Omitting the 'm' suffix for decimal literals.

Decimal variables require the decimal keyword and the number must have an m suffix.

4fill in blank

hard

Fill both blanks to declare a float and a decimal variable correctly.

C Sharp (C#)

float pi = [1][2];
decimal cost = 9.99m;

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

A3.14

B3.14f

Cf

Dm

Attempts:

3 left

💡 Hint

Common Mistakes

Putting the suffix before the number.

Using 'm' suffix for float.

For float, the number must be followed by f suffix. The number itself is 3.14.

5fill in blank

hard

Fill all three blanks to declare variables of float and double types correctly.

C Sharp (C#)

[1] f = 3.5[2];
[3] d = 6.7;

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

A3.5f

Bf

Cdouble

Dfloat

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'float' keyword for double variable.

Omitting 'f' suffix for float literal.

Float literals need the 'f' suffix. Double variables use the double keyword and no suffix.