Value equality in records in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a record named Person with two properties.

C Sharp (C#)

public record Person(string [1], int Age);

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AName

BfirstName

CFullName

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase property names which is against C# naming conventions.

Using unrelated property names.

The record property should be named Name to match common conventions.

2fill in blank

medium

Complete the code to create two Person records with the same values.

C Sharp (C#)

var person1 = new Person("Alice", 30);
var person2 = new Person("Alice", [1]);

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A25

B30

C35

D40

Attempts:

3 left

💡 Hint

Common Mistakes

Using different ages which makes the records unequal.

Confusing the age values.

Both records must have the same age 30 to be equal by value.

3fill in blank

hard

Fix the error in the equality check between two Person records.

C Sharp (C#)

bool areEqual = person1 [1] person2;

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A==

B=

C!=

Dequals

Attempts:

3 left

💡 Hint

Common Mistakes

Using single = which is assignment, not comparison.

Using != which checks inequality.

Using 'equals' which is not valid syntax in C#.

Use the == operator to check value equality between records.

4fill in blank

hard

Fill both blanks to override the ToString method in the Person record.

C Sharp (C#)

public override string ToString() => $"[1]: [2]";

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AName

BAge

CName + Age

DPerson

Attempts:

3 left

💡 Hint

Common Mistakes

Using combined strings instead of separate properties.

Using class name instead of property names.

The ToString method should return the person's Name and Age values.

5fill in blank

hard

Fill all three blanks to create a new Person record with updated Age using the with-expression.

C Sharp (C#)

var olderPerson = person1 with { [1] = [2] + [3] };

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AAge

Bperson1.Age

C1

DName

Attempts:

3 left

💡 Hint

Common Mistakes

Trying to update the Name property instead of Age.

Using incorrect syntax for the with-expression.

The with-expression updates the Age property by adding 1 to person1.Age.