@Parameter and @Schema annotations in Spring Boot - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add a description to a method parameter using @Parameter annotation.

Spring Boot

@Parameter(description = "[1]")
public void getUser(String userId) {}

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

AUser identifier

BUser name

CUser age

DUser email

Attempts:

3 left

💡 Hint

Common Mistakes

Using unrelated descriptions like 'User name' when the parameter is an ID.

Leaving the description empty.

The @Parameter annotation's description attribute is used to describe the parameter. Here, "User identifier" clearly describes the purpose of the parameter.

2fill in blank

medium

Complete the code to specify the example value for a schema using @Schema annotation.

Spring Boot

@Schema(example = "[1]")
private String status;

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

Anull

B123

Ctrue

Dactive

Attempts:

3 left

💡 Hint

Common Mistakes

Using numeric or boolean values as examples for string fields.

Using 'null' as an example which is not informative.

The example attribute in @Schema provides a sample value for the field. "active" is a meaningful example for a status field.

3fill in blank

hard

Fix the error in the annotation to correctly mark a parameter as required using @Parameter.

Spring Boot

@Parameter(required = [1])
public void updateUser(String userId) {}

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

A"true"

Btrue

CTrue

DTRUE

Attempts:

3 left

💡 Hint

Common Mistakes

Using quotes around true making it a string.

Using uppercase True or TRUE which are invalid.

The required attribute expects a boolean value without quotes. Using true (lowercase) is correct.

4fill in blank

hard

Fill both blanks to define a schema with a description and a minimum value.

Spring Boot

@Schema(description = "[1]", minimum = "[2]")
private int age;

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

AUser age

B18

CMinimum age allowed

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using numeric values without quotes for minimum.

Using unrelated descriptions.

The description explains the field, and minimum sets the lowest allowed value. "User age" and "18" are appropriate here.

5fill in blank

hard

Fill all three blanks to create a parameter annotation with a name, description, and required flag.

Spring Boot

@Parameter(name = "[1]", description = "[2]", required = [3])
public void deleteUser(String id) {}

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

AuserId

BThe ID of the user to delete

Ctrue

Dfalse

Attempts:

3 left

💡 Hint

Common Mistakes

Using false for required when the parameter is mandatory.

Mismatching the name with the actual parameter variable.

The name attribute names the parameter, description explains it, and required marks it as mandatory. "userId", "The ID of the user to delete", and true are correct.