Why you should use Java & Android Online Test?

The Prueba de Java y Android makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects: Conceptos básicos de Java Java oops Colecciones de java Marco de núcleo de Android Componentes de Android Manejo de interacción de usuario de Android Codificación de Java Manejo de excepciones y errores en Java Comprender la herencia y el polimorfismo en Java Trabajar con estructuras de datos y algoritmos en Java

Java & Android Online Test

About the test:

La prueba en línea de Java Android utiliza preguntas de opción múltiple para evaluar a los candidatos sobre sus conocimientos y habilidades relacionadas con los fundamentos de Java y Android, el diseño de la interfaz de usuario, el ciclo de vida de la actividad y el fragmento, el almacenamiento y la recuperación de datos, la comunicación de red, el enhebrado y la concurrencia, e integración con el tercer lugar. -Party Bibliotecas y API.

Covered skills:

Conceptos básicos de Java
Colecciones de java
Componentes de Android
Codificación de Java

Java oops
Marco de núcleo de Android
Manejo de interacción de usuario de Android

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9 reasons why

Adaface Java & Android Test is the most accurate way to shortlist Desarrollador de Javas

Reason #1

Tests for on-the-job skills

The Java & Android 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.

The test screens for the following skills that hiring managers look for in candidates:

Capaz de escribir código Java utilizando la sintaxis básica y los tipos de datos
Competente en conceptos de programación orientados a objetos en Java
Conocimiento en el marco de las colecciones Java y las estructuras de datos
Familiarizado con el marco central del desarrollo de Android
Capaz de diseñar e implementar componentes de Android
Experto en manejo de interacciones de los usuarios de Android
Capaz de manejar eficientemente las excepciones y errores en Java
Experimentado en la utilización de principios de codificación de Java y las mejores prácticas

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.

View sample questions

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

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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.

How we design questions

Estas son solo una pequeña muestra de nuestra biblioteca de más de 10,000 preguntas. Las preguntas reales sobre esto Prueba de Java y Android no se puede obtener.

🧐 Question
Easy Custom Exception Exception Handling Custom Exceptions	Solve
What does the following code output?
Hard Holding References	Solve
What does the following Java code output?
Medium Abstract Interface OOPs Interfaces	Solve
Given following interface: Which of these are correct classes?
Medium Garbage Collection Garbage Collection	Solve
After which line is "bs" object, created on Line 4, eligible for garbage collection?
Hard Static Init Blocks OOPs	Solve
What does the following code output? 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
Easy Intent & Activity	Solve
We want to pass a value to next activity in Android. Which of the following options are the right way to do it?
Easy Linear Layout	Solve
Check the following XML layout file. What will the UI for this layout file look like? 1. An edit text to the right of a text view and a button beneath them 2. An edit text to the right of a text view and a button to the right of the text view 3. A text view, an edit text beneath it and the button beneath the edit text 4. An edit text to the left of a text view and a button beneath it
Easy Registration Queue Logic Queues	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 Visitors Count Strings Logic	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 Exception Handling Custom Exceptions	2 mins Java	Solve
What does the following code output?
	Hard Holding References	2 mins Java	Solve
What does the following Java code output?
	Medium Abstract Interface OOPs Interfaces	2 mins Java	Solve
Given following interface: Which of these are correct classes?
	Medium Garbage Collection Garbage Collection	2 mins Java	Solve
After which line is "bs" object, created on Line 4, eligible for garbage collection?
	Hard Static Init Blocks OOPs	2 mins Java	Solve
What does the following code output? 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
	Easy Intent & Activity	2 mins Android	Solve
We want to pass a value to next activity in Android. Which of the following options are the right way to do it?
	Easy Linear Layout	2 mins Android	Solve
Check the following XML layout file. What will the UI for this layout file look like? 1. An edit text to the right of a text view and a button beneath them 2. An edit text to the right of a text view and a button to the right of the text view 3. A text view, an edit text beneath it and the button beneath the edit text 4. An edit text to the left of a text view and a button beneath it
	Easy Registration Queue Logic Queues	30 mins Coding	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 Visitors Count Strings Logic	30 mins Coding	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	💪 Difficulty	⌛ Time
	Custom Exception Exception Handling Custom Exceptions	Java	Easy	2 mins	Solve
What does the following code output?
	Holding References	Java	Hard	2 mins	Solve
What does the following Java code output?
	Abstract Interface OOPs Interfaces	Java	Medium	2 mins	Solve
Given following interface: Which of these are correct classes?
	Garbage Collection Garbage Collection	Java	Medium	2 mins	Solve
After which line is "bs" object, created on Line 4, eligible for garbage collection?
	Static Init Blocks OOPs	Java	Hard	2 mins	Solve
What does the following code output? 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
	Intent & Activity	Android	Easy	2 mins	Solve
We want to pass a value to next activity in Android. Which of the following options are the right way to do it?
	Linear Layout	Android	Easy	2 mins	Solve
Check the following XML layout file. What will the UI for this layout file look like? 1. An edit text to the right of a text view and a button beneath them 2. An edit text to the right of a text view and a button to the right of the text view 3. A text view, an edit text beneath it and the button beneath the edit text 4. An edit text to the left of a text view and a button beneath it
	Registration Queue Logic Queues	Coding	Easy	30 mins	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
	Visitors Count Strings Logic	Coding	Medium	30 mins	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.

Reason #4

1200+ customers in 75 countries

Con Adaface, pudimos optimizar nuestro proceso de selección inicial en más de un 75 %, liberando un tiempo precioso tanto para los gerentes de contratación como para nuestro equipo de adquisición de talentos.

Brandon Lee, jefe de personas, Love, Bonito

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Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Prueba de Java y Android 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.

Science behind Adaface tests

Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the Prueba de Java y Android 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 & benchmarks

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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

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About the Java & Android Assessment Test

Why you should use Pre-employment Java & Android Online Test?

The Prueba de Java y Android makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

Conceptos básicos de Java
Java oops
Colecciones de java
Marco de núcleo de Android
Componentes de Android
Manejo de interacción de usuario de Android
Codificación de Java
Manejo de excepciones y errores en Java
Comprender la herencia y el polimorfismo en Java
Trabajar con estructuras de datos y algoritmos en Java

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the Java & Android Online Test?

Java Basics
Java Basics se refiere a los conceptos fundamentales y la sintaxis del lenguaje de programación Java. Incluye conocimiento de tipos de datos, variables, estructuras de control y operaciones básicas de entrada/salida. Esta habilidad debe medirse en la prueba para garantizar que los candidatos tengan una base sólida en la programación de Java, ya que forma la base de temas más avanzados.
java oops
java oops (objeto- La programación orientada) implica comprender los principios de encapsulación, herencia, polimorfismo y abstracción en Java. Esta habilidad permite a los desarrolladores escribir código modular, mantenible y reutilizable. Es importante evaluar esta habilidad en la prueba para evaluar la capacidad de un candidato para implementar soluciones Java eficientes y escalables. Estructuras de datos, como listas, conjuntos y mapas. Es esencial que los desarrolladores sean competentes en esta habilidad para manipular y almacenar datos de manera efectiva. La evaluación de esta habilidad en la prueba permite a los reclutadores medir la competencia de un candidato en el uso de estas estructuras de datos para resolver problemas del mundo real.
Android Core Framework
El marco de Android Core es una colección de Clases y bibliotecas esenciales que facilitan el desarrollo de aplicaciones de Android. Incluye componentes como actividad, servicio, ContentProvider e Intent. Medir esta habilidad en la prueba ayuda a los reclutadores a evaluar la comprensión de un candidato de los componentes básicos de la construcción de las aplicaciones Android. actividades, fragmentos y puntos de vista. Es importante evaluar esta habilidad en la prueba, ya que demuestra la capacidad de un candidato para diseñar y estructurar la interfaz de usuario y la funcionalidad de una aplicación Android.
Manejo de interacción de usuario de Android
Interacción del usuario de Android El manejo implica capturar y responder a las acciones del usuario dentro de una aplicación Android, como clics de botones, gestos y eventos táctiles. Es crucial evaluar esta habilidad en la prueba para garantizar que los candidatos puedan crear experiencias de usuario intuitivas y receptivas en sus aplicaciones Android. Código eficiente y legible utilizando el lenguaje de programación Java. Esta habilidad abarca algoritmos de escritura, implementando estructuras de datos y aplicando las mejores prácticas en el desarrollo de Java. La evaluación de esta habilidad en la prueba permite a los reclutadores medir las habilidades de codificación de un candidato y su capacidad para resolver los desafíos de programación de manera efectiva.
Full list of covered topics
The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for Prueba de Java y Android to be based on.
Variables
Operadores
Declaraciones condicionales
Bucles
Métodos
Herencia
Polimorfismo
Abstracción
Encapsulación
Lista de arreglo
Mapache
Lista enlazada
Pila
Cola
Hilo
Asíncata
Actividad
Fragmento
Servicio
Receptor de radiodifusión
Intención
Diseños
Puntos de vista
Manejo de eventos
Widgets de UI
Manejo de excepciones
E/S de archivo
Redes
Base de datos sqlite
Preferencias compartidas
Recyclerview
Adaptador
Viewholder
Firebase
JSON PARSING
Permisos
Diálogo
Tostada
Pruebas
Depuración
Inicio sesión
Expresiones lambda
Genéricos
Múltiples lectura
Patrones de diseño
Sincronización
Publicación por entregas
Expresiones lambda
Manejo de excepciones
Recursión
Clasificación
buscando
Estructuras de datos
Análisis de algoritmo
Gestión de la memoria
Las mejores prácticas de codificación
Código de refactorización

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What roles can I use the Java & Android Online Test for?

Desarrollador de Java
Desarrollador de Android
Desarrollador senior de Android
Desarrollador de aplicaciones móviles

How is the Java & Android Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

Implementación de la arquitectura MVC en Android
Utilizando intentos y filtros de intención en Android
Diseño e implementación de vistas personalizadas en Android
Uso de diseños y recursos de Android XML de manera efectiva
Manejo de eventos de entrada y contacto del usuario en Android
Implementación de tareas múltiples y de fondo en Java
Trabajar con bases de datos y SQLite en Android
Creación y gestión de fragmentos en Android
Prueba y depuración de aplicaciones de Android
Creación de interfaces de usuario receptivas y eficientes en Android
Optimización del código y el rendimiento en Java y Android

The coding question for experienced candidates will be of a higher difficulty level to evaluate more hands-on experience.

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Los gerentes de contratación sintieron que a través de las preguntas técnicas que hicieron durante las entrevistas del panel, pudieron decir qué candidatos tenían mejores puntajes y diferenciarse de aquellos que no obtuvieron tan buenos puntajes. Ellos son altamente satisfecho con la calidad de los candidatos preseleccionados con la selección de Adaface.

85%

Reducción en el tiempo de detección

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Java & Android Hiring Test Preguntas frecuentes

¿Puedo combinar múltiples habilidades en una evaluación personalizada?

Si, absolutamente. Las evaluaciones personalizadas se configuran en función de la descripción de su trabajo e incluirán preguntas sobre todas las habilidades imprescindibles que especifique.

¿Tiene alguna característica anti-trato o procuración en su lugar?

Tenemos las siguientes características anti-trate en su lugar:

Preguntas no postradas
Procuración de IP
Procedor web
Procedores de cámara web
Detección de plagio
navegador seguro

Lea más sobre las funciones de procuración.

¿Cómo interpreto los puntajes de las pruebas?

Lo principal a tener en cuenta es que una evaluación es una herramienta de eliminación, no una herramienta de selección. Una evaluación de habilidades está optimizada para ayudarlo a eliminar a los candidatos que no están técnicamente calificados para el rol, no está optimizado para ayudarlo a encontrar el mejor candidato para el papel. Por lo tanto, la forma ideal de usar una evaluación es decidir un puntaje umbral (generalmente del 55%, lo ayudamos a comparar) e invitar a todos los candidatos que obtienen un puntaje por encima del umbral para las próximas rondas de la entrevista.

¿Para qué nivel de experiencia puedo usar esta prueba?

Cada evaluación de AdaFace está personalizada para su descripción de trabajo/ persona candidata ideal (nuestros expertos en la materia elegirán las preguntas correctas para su evaluación de nuestra biblioteca de más de 10000 preguntas). Esta evaluación se puede personalizar para cualquier nivel de experiencia.

¿Cada candidato tiene las mismas preguntas?

Sí, te hace mucho más fácil comparar los candidatos. Las opciones para las preguntas de MCQ y el orden de las preguntas son aleatorizados. Tenemos características anti-trato/procuración en su lugar. En nuestro plan empresarial, también tenemos la opción de crear múltiples versiones de la misma evaluación con cuestiones de niveles de dificultad similares.