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Java, Spring & SQL Online Test

About the test:

The Java, Spring & SQL Test is preferred by recruiters to assess on-the-job skills of candidates before an interview. It reduces technical screening time by 80% by enabling employers to identify qualified candidates.

Covered skills:

  • Matrizes
  • Cordas
  • Objetos
  • Estruturas de dados
See all covered skills

9 reasons why
9 reasons why

Adaface Java, Spring & SQL Online Test is the most accurate way to shortlist candidates



Reason #1

Tests for on-the-job skills

The Java, Spring & SQL Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

Non-googleable questions & proctoring features enable you to be comfortable with conducting assessments online. The Java, Spring & SQL Online Test is ideal for helping recruiters identify which candidates have the skills to do well on the job.

Reason #2

No trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface ->
Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

Estes são apenas uma pequena amostra da nossa biblioteca de mais de 10.000 perguntas. As perguntas reais sobre isso Java, Spring & SQL Test será não-googleable.

🧐 Question

Easy

Custom Exception
Exceptions
Solve
What does the following code output?
 image

Medium

Holding References
Solve
What does the following Java code output?
 image

Medium

Abstract Interface
OOPs
Interfaces
Solve
Given following interface:
 image
Which of these are correct classes?
 image

Medium

Garbage Collection
Garbage Collection
Solve
After which line is "bs" object, created on Line 4, eligible for garbage collection?
 image

Medium

Static Init Blocks
OOPs
Solve
What does the following code output?
 image
1) G A B E D H
2) G B A D E H
3) G B A D E H C F
4) C F G A B E D H
5) C F G B A D E H
6) G C F A B E D H
7) G C F B A D E H

Medium

Autowiring Service
Solve
Review the following two Spring components- SampleA and SampleB:
 image
 image
Notice @Autowired line added to SampleService in SampleB (rest of the code is same for both components). What happens when the components are run as a @SpringBootApplication?
A: SampleA prints true null
B: SampleA prints true class package.SampleService
C: SampleA throws a null pointer exception
D: SampleA prints false null

E: SampleB prints true null
F: SampleB prints true class package.SampleService
G: SampleB throws a null pointer exception
H: SampleB prints false null

Medium

Bean init and afterPropertiesSet
Beans
Solve
Spring allows specific operations to be performed after the bean is initialized and before the bean is destroyed. Review the following sample Bean that implements init method and overrides afterPropertiesSet. 
 image
Here’s the bean definition added to the configuration file:
 image
What does the code print when the Spring container is started?

Medium

Boot Autowiring
Spring Boot
Solve
Review the following Spring Boot application code:
 image
Here are two possible SampleConfig class definitions:
 image
When the code is run as @SpringBootApplication, what would happen?

A: Using X as SampleConfig will print- true SimpleDateFormat
B: Using X as SampleConfig will print - true class java.text.SimpleDateFormat
C: Using X as SampleConfig will print a NullPointerException stacktrace
D: Using X as SampleConfig will print a BeanDefinitionParsingException stacktrace

E: Using Y as SampleConfig will print- true SimpleDateFormat
F: Using Y as SampleConfig will print - true class java.text.SimpleDateFormat
G: Using Y as SampleConfig will print a NullPointerException stacktrace
H: Using Y as SampleConfig will print a BeanDefinitionParsingException stacktrace

Medium

Multi Select
Solve
Consider the following SQL table:
 image
How many rows does the following SQL query return?
 image

Easy

Select & IN
Solve
Consider the following SQL table:
 image
Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
 image

Medium

With, AVG & SUM
Solve
Consider the following SQL table:
 image
How many tuples does the following query return?
 image

Easy

Registration Queue
Logic
Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount.
For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition.
⚠️⚠️⚠️ Note:
- The first line of the input is the length of the array. The second line contains all the elements of the array.
- The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function.
- You need to "print" the final result (not return it) to pass the test cases.

For the example discussed above, the input will be:
5
20 70 -40 30 -10

Your code needs to print the following to the standard output:
20 70 30 -40 -10

Medium

Longest Road
logic
hashmaps
Solve
A startup company E-Motors is building driverless automated cars. The car contains a sensor that checks the road quality for the next N meters to decide the optimal speed at which the cars should move. We are given recorded data by the sensor in the form of an array, where each element of the array is the rating given to 1 meter of the road in sequence. 

The rating given by the sensor is from 1 to 100, where 100 represents the road with the best condition, and any rating above 60 is optimal. Find the longest stretch of road in meters that is categorized as optimal by the sensor.

The input is an array of "strings" which needs to be converted from string to integer/number inside the function.

Medium

Visitors Count
Strings
Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. 
Example:

Input:
WWMMWWCCC

Expected Output: 
4W3C2M

Explanation: 
‘W’ has the highest count, then ‘C’, then ‘M’. 
⚠️⚠️⚠️ Note:
- The input is already parsed and passed to a function.
- You need to "print" the final result (not return it) to pass the test cases.
- If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’.
- If any of them have the same count, the output should follow this order - M, W, C.
🧐 Question🔧 Skill

Easy

Custom Exception
Exceptions
2 mins
Java
Solve

Medium

Holding References
2 mins
Java
Solve

Medium

Abstract Interface
OOPs
Interfaces
2 mins
Java
Solve

Medium

Garbage Collection
Garbage Collection
2 mins
Java
Solve

Medium

Static Init Blocks
OOPs
2 mins
Java
Solve

Medium

Autowiring Service
3 mins
Spring
Solve

Medium

Bean init and afterPropertiesSet
Beans
2 mins
Spring
Solve

Medium

Boot Autowiring
Spring Boot
3 mins
Spring
Solve

Medium

Multi Select
2 mins
SQL
Solve

Easy

Select & IN
3 mins
SQL
Solve

Medium

With, AVG & SUM
2 mins
SQL
Solve

Easy

Registration Queue
Logic
30 mins
Coding
Solve

Medium

Longest Road
logic
hashmaps
25 mins
Coding
Solve

Medium

Visitors Count
Strings
30 mins
Coding
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
Custom Exception
Exceptions
Java
Easy2 mins
Solve
Holding References
Java
Medium2 mins
Solve
Abstract Interface
OOPs
Interfaces
Java
Medium2 mins
Solve
Garbage Collection
Garbage Collection
Java
Medium2 mins
Solve
Static Init Blocks
OOPs
Java
Medium2 mins
Solve
Autowiring Service
Spring
Medium3 mins
Solve
Bean init and afterPropertiesSet
Beans
Spring
Medium2 mins
Solve
Boot Autowiring
Spring Boot
Spring
Medium3 mins
Solve
Multi Select
SQL
Medium2 mins
Solve
Select & IN
SQL
Easy3 mins
Solve
With, AVG & SUM
SQL
Medium2 mins
Solve
Registration Queue
Logic
Coding
Easy30 minsSolve
Longest Road
logic
hashmaps
Coding
Medium25 minsSolve
Visitors Count
Strings
Coding
Medium30 minsSolve
Reason #4

1200+ customers in 75 countries

Brandon

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!


Brandon Lee, Head of People, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Java, Spring & SQL Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the Java, Spring & SQL Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

Reason #7

Detailed scorecards & comparative results

Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

Reason #9

Advanced Proctoring


What topics are covered in the Java, Spring & SQL Online Test?

Matrizes
Objetos
Cordas
Estruturas de dados
API de reflexão
Programação funcional
Lambdas
Fluxos API
Expressões regulares
JDBC
Trabalhando com bancos de dados
Serialização e desperalização
Programação orientada a objetos (OOP)
Classes e objetos
Programação de aplicativos da web
Anotações
Opcionais
Módulos
Java 8 Data/Hora API
Listar, definir, mapa interfaces
SÓLIDO
Estrutura de coleções Java
Procurando
Ordenação
Variáveis
Tipos de dados
JSP
Servlets
Genéricos
Multi-threading
Manipulação de exceção
Manuseio do sistema de arquivos
Herança
Polimorfismo
Depuração
Matrizes
Programação orientada a eventos
Boot de primavera
Núcleo da primavera - COI
MVC da primavera
AOP da primavera
Dados da primavera JPA
Descanso de primavera
Segurança da primavera
Injeção de dependência
Autowiring
Escopo de um feijão
Protótipo
Singleton
Ciclo de vida de um feijão
Anotações
@PostConstruct
@Predestroy
@Componente
@Serviço
@Repositório
@Controlador
Configuração automática de inicialização da primavera
Ferramentas de desenvolvedor de inicialização da primavera
Propriedades do ambiente da primavera
Propriedades do aplicativo de inicialização da primavera
Execute operações de banco de dados usando o Spring JDBC
Spring Boot
Spring Core - IoC
Spring MVC
Spring AOP
Spring Data JPA
Spring REST
Spring Security
Dependency Injection
Autowiring
Scope of a Bean
Prototype
Singleton
Lifecycle of a Bean
Annotations
@PostConstruct
@PreDestroy
@Component
@Service
@Repository
@Controller
Spring Boot Auto Configuration
Spring Boot Developer Tools
Spring Environment Properties
Spring Boot Application Properties
Perform database operations using Spring JDBC
O modelo relacional
SQL Basics
Funções SQL
Linguagem de modificação de dados
Linguagem de consulta de dados
Crud
Filtragem SQL / onde declaração
Subconsas
Índices
3 lógica valorizada
SQL se junta
Funções de janela
Data de filtragem e registro de data e hora
Funções agregadas
operador precedente
ORDENAR POR
Grupo por
Design de cima para baixo
Design de baixo para cima
Diagrama de relacionamento da entidade
Normalização
Tipos de banco de dados
Seleção de várias mesa
Gerenciamento de permissão
Estratégias de backup
Transações
Tipos de dados
Visualizações
Sharding
Replicação
Backups
Escala vertical + horizontal
Bancos de dados distribuídos versus centralizados
Segurança do banco de dados
Injeções SQL
Controle de acesso
Fundamentos do computador
Codificação de letras
Codificação de números
Substituição
Quebra-cabeças de codificação de codificação
Raciocínio não verbal
Conceitos SQL
Análise de negócio
Codificação de codificação
Linguagens de programação
Arquitetura do computador
Conceitos básicos de DBMS
Princípios sólidos
Sistemas de automação
Tomando uma decisão
Raciocínio não verbal
Abordagem de solução de problemas
Singapore government logo

The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.


85%
reduction in screening time

FAQs

Posso combinar várias habilidades em uma avaliação personalizada?

Sim absolutamente. As avaliações personalizadas são configuradas com base na descrição do seu trabalho e incluirão perguntas sobre todas as habilidades obrigatórias que você especificar.

Você tem algum recurso anti-trapaça ou procurador?

Temos os seguintes recursos anti-trapaça:

  • Perguntas não-goleadas
  • IP Proctoring
  • Web Proctoring
  • Proctoring da webcam
  • Detecção de plágio
  • navegador seguro

Leia mais sobre os Recursos de Proctoring.

Como interpreto as pontuações dos testes?

O principal a ter em mente é que uma avaliação é uma ferramenta de eliminação, não uma ferramenta de seleção. Uma avaliação de habilidades é otimizada para ajudá -lo a eliminar os candidatos que não são tecnicamente qualificados para o papel, não é otimizado para ajudá -lo a encontrar o melhor candidato para o papel. Portanto, a maneira ideal de usar uma avaliação é decidir uma pontuação limite (normalmente 55%, ajudamos você a comparar) e convidar todos os candidatos que pontuam acima do limiar para as próximas rodadas da entrevista.

Para que nível de experiência posso usar este teste?

Cada avaliação do Adaface é personalizada para a descrição do seu trabalho/ persona do candidato ideal (nossos especialistas no assunto escolherão as perguntas certas para sua avaliação de nossa biblioteca de mais de 10000 perguntas). Esta avaliação pode ser personalizada para qualquer nível de experiência.

Todo candidato recebe as mesmas perguntas?

Sim, facilita muito a comparação de candidatos. As opções para perguntas do MCQ e a ordem das perguntas são randomizadas. Recursos anti-traking/proctoring no local. Em nosso plano corporativo, também temos a opção de criar várias versões da mesma avaliação com questões de níveis de dificuldade semelhantes.

Eu sou um candidato. Posso tentar um teste de prática?

Não. Infelizmente, não apoiamos os testes práticos no momento. No entanto, você pode usar nossas perguntas de amostra para prática.

Qual é o custo de usar este teste?

Você pode conferir nossos planos de preços.

Posso obter uma avaliação gratuita?

Sim, você pode se inscrever gratuitamente e visualizar este teste.

Acabei de me mudar para um plano pago. Como posso solicitar uma avaliação personalizada?

Aqui está um guia rápido sobre Como solicitar uma avaliação personalizada no Adaface.

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