Skip to contentSkip to footer

Desarrollador Java Interview Questions

Salaries
Interviews

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.

710,996 desarrollador java interview questions shared by candidates

Puzzle1 - Given 8 coins, and the fact that one of the coins is heavier than the other, how many times(min) do you need to use a beam balance to figure out which is the anomalous coin? After I answered this, he made it little tougher. Given 9 coins and one anomalous coin(maybe heavier or lighter), figure out which coin it is and whether heavier or lighter. What is the min no of comparisons? This is where i took a while to answer.
avatar

Financial Software Developer

Interviewed at Bloomberg

4★
Nov 16, 2010

Puzzle1 - Given 8 coins, and the fact that one of the coins is heavier than the other, how many times(min) do you need to use a beam balance to figure out which is the anomalous coin? After I answered this, he made it little tougher. Given 9 coins and one anomalous coin(maybe heavier or lighter), figure out which coin it is and whether heavier or lighter. What is the min no of comparisons? This is where i took a while to answer.

given an arrya of numbers see if you can get to index with 0 in it from an index by jumping through the array using the values in the array. So if you have [1,2,1,0,3] you can get to 0, from 0 by jumping 0, you can get to 0 from 3, by jumping 3 index down to 2 and then jumping 2 index up to 0...
avatar

Software Engineer

Interviewed at Pinterest

3.6★
Nov 19, 2012

given an arrya of numbers see if you can get to index with 0 in it from an index by jumping through the array using the values in the array. So if you have [1,2,1,0,3] you can get to 0, from 0 by jumping 0, you can get to 0 from 3, by jumping 3 index down to 2 and then jumping 2 index up to 0...

Given a binary tree, which is not necessarily balanced, print the nodes in the tree in a level-wise manner. Also, nodes on the same level should be printed on a single line. A modification of the question was added later in which I cannot really add a "level" variable in the structure of the node in the tree.
avatar

Software Engineer Intern

Interviewed at Meta

3.5★
Aug 13, 2013

Given a binary tree, which is not necessarily balanced, print the nodes in the tree in a level-wise manner. Also, nodes on the same level should be printed on a single line. A modification of the question was added later in which I cannot really add a "level" variable in the structure of the node in the tree.

Implement a method called printNonComments() which prints out a extract of text with comments removed. For example, the input: hello /* this is a multi line comment */ all Should produce: hello all You have access to a method called getNextLine() which returns the next line in the input string.
avatar

Senior Software Engineer

Interviewed at Meta

3.5★
Jun 30, 2014

Implement a method called printNonComments() which prints out a extract of text with comments removed. For example, the input: hello /* this is a multi line comment */ all Should produce: hello all You have access to a method called getNextLine() which returns the next line in the input string.

1. Tell me about yourself 2. Given each abc letter has a value (a=1, b=2, ... , z=26), compute the number of ways one can decode a given integer. e.g. 23 --> 2 [ 2, 3 ; 23 ], 456 --> 1 [ 4, 5, 6 ], 123 --> 3 [ 1, 2, 3 ; 1, 23 ; 12, 3 ]
avatar

Software Engineer

Interviewed at Meta

3.5★
Feb 23, 2015

1. Tell me about yourself 2. Given each abc letter has a value (a=1, b=2, ... , z=26), compute the number of ways one can decode a given integer. e.g. 23 --> 2 [ 2, 3 ; 23 ], 456 --> 1 [ 4, 5, 6 ], 123 --> 3 [ 1, 2, 3 ; 1, 23 ; 12, 3 ]

Viewing 881 - 890 interview questions

Glassdoor has 710,996 interview questions and reports from Desarrollador java interviews. Prepare for your interview. Get hired. Love your job.