Java 11

Java 11 online coding tests & interview questions

junit
MIDDLE
Tested skills
Duration
64 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of JUnit, QA

Code gaps

assessing knowledge of JUnit, JUnit4, QA, JUnit 5, Java

Programming task - Level: Medium

QA | JUnit | ATM Service | Authentication and deposit validation - Write test cases to verify the Automated Teller Machine (ATM) software.

java
MIDDLE
Tested skills
Duration
58 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Core Java, Java, Stream API, I/O system, Date and Time

Code gaps

assessing knowledge of Core Java, Java, Network Communication

Programming task - Level: Medium

Java | Azure | Production summarizer - Create an Azure function. Your current task is to finish implementation of production summarizer returning information about how many cars were produced by a particular plant.

Java
MIDDLE
Tested skills
Duration
104 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java, Spring Boot

Code gaps

assessing knowledge of Core Java, Exceptions, Java, Generics, I/O system

Programming task - Level: Medium

Java | Couchbase, Spring Boot | Card Payments - Create a card payment processing microservice. Finish the implementation of saving payment data into Couchbase and communicate with other services.

Java
JUNIOR
Tested skills
Duration
49 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Core Java: Network Communication, Generics, Memory Management

Code gaps

assessing knowledge of Core Java: Collections, Memory Management, Generics

Programming task - Level: Easy

Java | Currency Exchange - Complete the implementation of the Currency Exchange app, which is responsible for managing exchange rates and exchanging the currencies.

junit
MIDDLE
Tested skills
Duration
66 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of QA, Testing, Unit-Testing, Manual Testing

Code gaps

assessing knowledge of JUnit 5, Java, QA

Programming task - Level: Medium

QA | JUnit | ATM Service | Authentication and deposit validation

junit
MIDDLE
Tested skills
Duration
73 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java and QA

Code gaps

assessing knowledge of Java and QA

Programming task - Level: Medium

QA | Java, JUnit | Vending Machine - Write unit tests for the verification of a Vending machine.

Java
MIDDLE
Tested skills
Duration
69 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of API, Java

Code gaps

assessing knowledge of Java, Java Stream API, Streams

Programming task - Level: Medium

Java | Standard Search Engine - Implement engine for product searching based on simple and compound predicates.

Java
MIDDLE
Tested skills
Duration
97 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java

Code gaps

assessing knowledge of Java

Programming task - Level: Medium

Java | Precomputing Search Engine - Implement the optimized engine for the product search, based on the precomputation task to precompute the results for any set of the options.

Java
SENIOR
Tested skills
Duration
71 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java, Multithreading

Code gaps

assessing knowledge of MongoDB

Programming task - Level: Hard

Java | Circuit Breaker and Retry pattern - Implement circuit breaker, fallback and retry pattern in microservice architecture.

Java
MIDDLE
Tested skills
Duration
39 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java

Code gaps

assessing knowledge of JUnit 5, Java, QA

Programming task - Level: Medium

Java | JUnit | Flight Manager - Implement the missing features into the application responsible for managing flights data.

Java
MIDDLE
Tested skills
Duration
57 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java, Spring Boot

Code gaps

assessing knowledge of PostgreSQL, SQL

Programming task - Level: Medium

Java | Spring Boot | Items Retriever Microservice - Implement a microservice to retrieve items from the shopping system.

Java
JUNIOR
Tested skills
Duration
39 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java, Spring Boot, JPA

Code gaps

assessing knowledge of Java

Programming task - Level: Easy

Java | Spring Boot with JPA queries - Implement SQL queries to find the best streaming platform.

Java
SENIOR
Tested skills
Duration
78 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of GIT

Code gaps

assessing knowledge of Java

Programming task - Level: Hard

Java | Internet Banking System Decryption Service - Implement methods related to cryptography.

Java
MIDDLE
Tested skills
Duration
47 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java, Spring Boot, Hibernate

Code gaps

assessing knowledge of Hibernate, Java, JPA

Programming task - Level: Medium

Java | Spring Boot, JPA | Repositories - Implement all methods in the ItemRepository class.

Java
JUNIOR
Tested skills
Duration
39 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Core Java, Java, Lambda Expressions, Memory Management

Code gaps

assessing knowledge of Core Java, Java, collections, Memory Management, Lambda Expressions

Programming task - Level: Easy

Java | Core Java | Time Service - Implement solutions based on your knowledge of Java Time API.

Java
MIDDLE
Tested skills
Duration
75 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java and Spring Boot

Code gaps

assessing knowledge of Java and MongoDB

Programming task - Level: Medium

Java | MongoDB, Spring Boot | Flight searcher with MongoDB cache - Implement code that will be able to query multiple airlines for prices according to the client’s request.

Java
JUNIOR
Tested skills
Duration
45 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java, Spring, Hibernate

Programming task - Level: Easy

Java | Spring, Hibernate | Hottest pepper application - Implement methods inside PepperDao class using Spring and Hibernate.

Spring
JUNIOR
Tested skills
Duration
35 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java, Spring

Programming task - Level: Easy

Java | Spring | Currency Exchange Service - Create a currency exchange rate service. It should allow users to fetch information about currency exchange rates and calculate the amount of money they will get after the exchange.

Java
JUNIOR
Tested skills
Duration
35 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java, Spring

Programming task - Level: Easy

Java | Kafka | Flight tickets reservations - Implement the service for validating data quality which is received from the travel agencies.

Spring Boot
JUNIOR
Tested skills
Duration
54 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java, Spring Boot

Code gaps

assessing knowledge of Java

Programming task - Level: Easy

Java | Spring Boot | HATEOAS Bike Station - Finish the implementation of HATEOAS to the REST API.

Java
JUNIOR
Tested skills
Duration
120 minutes max.
Evaluation
Automatic
Test overview

Front End programming task - Level: Easy

JavaScript | TypeScript | Invoice application - frontend - Implement the front-end part for merging and aggregating the invoice data with currency exchange rates.

Back End programming task - Level: Easy

Java | Invoice application - backend - Implement the backend part for searching and aggregating invoice data with the service and the DAO methods.

Security certifications & compliance. We make sure your data is safe and secure.

DevSkiller logo TalentBoost logo TalentScore logo