@EnableAsync annotation in Spring Boot - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to enable asynchronous processing in a Spring Boot application.

Spring Boot

@Configuration
@[1]
public class AsyncConfig {
    @Bean
    public Executor taskExecutor() {
        return Executors.newCachedThreadPool();
    }
}

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

AEnableScheduling

BAsync

CEnableAsync

DAsyncConfigurer

Attempts:

3 left

💡 Hint

Common Mistakes

Using @Async instead of @EnableAsync on configuration class

Confusing with @EnableScheduling

The @EnableAsync annotation activates Spring's asynchronous method execution capability.

2fill in blank

medium

Complete the method annotation to mark it for asynchronous execution.

Spring Boot

public class MyService {
    @[1]
    public void process() {
        // long running task
    }
}

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

AAsync

BEnableAsync

CScheduled

DTransactional

Attempts:

3 left

💡 Hint

Common Mistakes

Using @EnableAsync on methods instead of @Async

Confusing with @Scheduled for async tasks

The @Async annotation marks a method to run asynchronously.

3fill in blank

hard

Fix the error in the configuration class to properly enable async support.

Spring Boot

@[1]
@Configuration
public class AsyncConfig {
    @Bean
    public Executor taskExecutor() {
        return Executors.newCachedThreadPool();
    }
}

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

ABean

BAsync

CConfiguration

DEnableAsync

Attempts:

3 left

💡 Hint

Common Mistakes

Placing @EnableAsync on a method instead of the class

Omitting @EnableAsync entirely

The @EnableAsync annotation must be placed on the configuration class to enable async processing.

4fill in blank

hard

Fill both blanks to create a configuration class that enables async and defines a thread pool executor.

Spring Boot

@[1]
@[2]
public class AsyncConfig {
    @Bean
    public Executor taskExecutor() {
        return Executors.newFixedThreadPool(5);
    }
}

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

AEnableAsync

BComponent

CConfiguration

DService

Attempts:

3 left

💡 Hint

Common Mistakes

Using @Component instead of @Configuration

Forgetting @EnableAsync annotation

The class must be annotated with @Configuration to define beans and @EnableAsync to activate async support.

5fill in blank

hard

Fill all three blanks to define an async method with a custom executor and enable async support.

Spring Boot

@[1]
@[2]
public class AsyncConfig {
    @Bean(name = "customExecutor")
    public Executor taskExecutor() {
        return Executors.newSingleThreadExecutor();
    }
}

public class MyService {
    @[3]("customExecutor")
    public void runTask() {
        // async task
    }
}

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

AEnableAsync

BConfiguration

CAsync

DComponent

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting @EnableAsync on configuration class

Not specifying executor name in @Async annotation

The configuration class needs @Configuration and @EnableAsync. The async method uses @Async with the custom executor name.