Integer types and their ranges in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a variable of type int with the value 100.

C Sharp (C#)

int number = [1];

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A100

B"100"

C100.0

D'100'

Attempts:

3 left

💡 Hint

Common Mistakes

Using quotes around the number, which makes it a string.

Using a decimal point, which makes it a floating-point number.

The value 100 is an integer literal, so it should be written without quotes or decimal points.

2fill in blank

medium

Complete the code to print the maximum value of a byte type.

C Sharp (C#)

Console.WriteLine(byte.[1]);

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AMaxValue

BMinValue

CMax

DMaximum

Attempts:

3 left

💡 Hint

Common Mistakes

Using MinValue instead of MaxValue.

Using incorrect property names like Max or Maximum.

The property MaxValue gives the largest value a byte can hold.

3fill in blank

hard

Fix the error in the code by choosing the correct type for a large integer value.

C Sharp (C#)

long bigNumber = [1];

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A2147483649L

B2147483648

C2147483648L

D2147483647

Attempts:

3 left

💡 Hint

Common Mistakes

Not adding 'L' suffix for long literals.

Using values within int range without suffix.

The value 2147483648 is too large for int, so we add 'L' to mark it as a long literal.

4fill in blank

hard

Fill both blanks to create a dictionary mapping integer types to their size in bytes.

C Sharp (C#)

var sizes = new Dictionary<string, int> { {"int", [1], {"long", [2] };

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A4

B8

C2

D16

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing the sizes of int and long.

Using sizes for other types like short or byte.

An int is 4 bytes and a long is 8 bytes in C#.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps integer types to their max values if the max value is greater than 1000.

C Sharp (C#)

var maxValues = new Dictionary<string, long> { {"int", [1], {"short", [2], {"long", [3] }.Where(kv => kv.Value > 1000).ToDictionary(kv => kv.Key, kv => kv.Value);

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

Aint.MaxValue

Bshort.MaxValue

Clong.MaxValue

Dbyte.MaxValue

Attempts:

3 left

💡 Hint

Common Mistakes

Using byte.MaxValue which is less than 1000.

Not using the MaxValue property.

We use the MaxValue property of each integer type to get their maximum values.