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Desarrollador Java Interview Questions

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Desarrollador Java Interview Questions

En una entrevista para un puesto de desarrollador Java, prepárate para responder preguntas técnicas destinadas a evaluar tus conocimientos básicos de Java. El posible que también te formulen preguntas abiertas para evaluar tus habilidades de programación y de resolución de problemas. Prepárate para afrontar preguntas no técnicas centradas en tus habilidades de comunicación interpersonal, de organización del tiempo y de ética en el trabajo.

Preguntas de entrevista más frecuentes para desarrollador/a Java y cómo responderlas

Question 1

Pregunta n.º 1: ¿Cuál es la diferencia entre HashTable y HashMap en Java?

How to answer
Respuesta recomendada: Los entrevistadores usarán preguntas técnicas para evaluar tu cualificación formal y tus conocimientos del lenguaje de programación Java. Aprovecha tu respuesta para exponer tus habilidades de comunicación. Aunque lleves años programando, quizás te convenga repasar tus nociones básicas de Java antes de la entrevista.
Question 2

Pregunta n.º 2: Escribe un programa para determinar si 243 es un número Armstrong.

How to answer
Respuesta recomendada: Usarán preguntas abiertas para poner a prueba tus habilidades de programación. Esta pregunta permite evaluar tu capacidad para resolver un problema utilizando un algoritmo de Java. Explica tu planteamiento mientras utilizas un editor de código o pizarra.
Question 3

Pregunta n.º 3: ¿Cómo lograrías elaborar código de calidad si tuvieras que simultanear varios proyectos Java?

How to answer
Respuesta recomendada: Los desarrolladores Java a menudo tienen que trabajar en varios proyectos a la vez. Las personas que realizan la entrevista utilizan preguntas como esta para poner a prueba tus habilidades organizativas y de gestión. Las empresas también intentan evaluar tu compromiso de calidad con tu trabajo. Si tienes experiencia como desarrollador, incluye ejemplos de tu experiencia profesional que demuestren tu capacidad para producir trabajo de calidad y para gestionar el tiempo de manera eficiente.

710,923 desarrollador java interview questions shared by candidates

Given an array of strings with commit ids, and a predicate isBuggy that returns if a single commit is buggy, write a program that finds the first buggy commit. - When a commit is buggy, we assume that all its children are buggy. - When a commit is not buggy, we assume that all its ancestors are not buggy. After solving it, I had to describe its time complexity and spatial complexity and how would I choose the test cases.
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Software Engineer

Interviewed at Yelp

3.2★
May 14, 2015

Given an array of strings with commit ids, and a predicate isBuggy that returns if a single commit is buggy, write a program that finds the first buggy commit. - When a commit is buggy, we assume that all its children are buggy. - When a commit is not buggy, we assume that all its ancestors are not buggy. After solving it, I had to describe its time complexity and spatial complexity and how would I choose the test cases.

Since this was a testing interview and not full out development he had some testing terms I had never heard of these include: Equivalence Class Testing Pair Wise Combinatorial Testing Failure Mode Analysis the only one I heard of was: White Box vs Black Box testing The coding portion was not difficult the question was this Write a function that takes two lists of strings and return a list of Strings with all of the intersections of the strings ex: List1 = {"a","a","a", "b", "d"} List2 = {"a", "a", "c", "d"} expectedReturn={"a","a","d"} Also he asked what tests cases I would use to validate the function also he wanted to know the run time analysis of the function
avatar

Software Development Engineer In Test

Interviewed at Amazon

3.5★
Dec 5, 2014

Since this was a testing interview and not full out development he had some testing terms I had never heard of these include: Equivalence Class Testing Pair Wise Combinatorial Testing Failure Mode Analysis the only one I heard of was: White Box vs Black Box testing The coding portion was not difficult the question was this Write a function that takes two lists of strings and return a list of Strings with all of the intersections of the strings ex: List1 = {"a","a","a", "b", "d"} List2 = {"a", "a", "c", "d"} expectedReturn={"a","a","d"} Also he asked what tests cases I would use to validate the function also he wanted to know the run time analysis of the function

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