@Scope for bean scope in Spring Boot - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a singleton scoped bean using @Scope.

Spring Boot

@Component
@Scope([1])
public class MyService {}

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

A"prototype"

B"session"

C"request"

D"singleton"

Attempts:

3 left

💡 Hint

Common Mistakes

Using "prototype" instead of "singleton" for a singleton bean.

The default and most common bean scope is singleton, which means one instance per Spring container.

2fill in blank

medium

Complete the code to define a prototype scoped bean using @Scope.

Spring Boot

@Component
@Scope([1])
public class TaskProcessor {}

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

A"prototype"

B"application"

C"singleton"

D"session"

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing prototype with singleton scope.

The prototype scope creates a new bean instance every time it is requested.

3fill in blank

hard

Fix the error in the code to set the bean scope to session.

Spring Boot

@Component
@Scope([1])
public class UserSession {}

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

ASession

Bsession

C"session"

D"Session"

Attempts:

3 left

💡 Hint

Common Mistakes

Missing quotes around the scope name.

The scope value must be a string literal with quotes, like "session".

4fill in blank

hard

Fill both blanks to define a request scoped bean with proxy mode.

Spring Boot

@Component
@Scope(value = [1], proxyMode = [2])
public class RequestBean {}

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

A"request"

BScopedProxyMode.TARGET_CLASS

C"singleton"

DProxyMode.DEFAULT

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong scope value or proxy mode.

Request scope is specified with "request". Proxy mode ScopedProxyMode.TARGET_CLASS creates a class-based proxy to handle the scope properly.

5fill in blank

hard

Fill all three blanks to define a session scoped bean with proxy mode and a custom bean name.

Spring Boot

@Component("[1]")
@Scope(value = [2], proxyMode = [3])
public class SessionBean {}

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

AcustomSessionBean

B"session"

CScopedProxyMode.TARGET_CLASS

D"prototype"

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to quote the scope or using wrong proxy mode.

The bean is named customSessionBean, scoped to "session", with proxy mode ScopedProxyMode.TARGET_CLASS for proper session handling.