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Desenvolvedor Java Interview Questions

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Desenvolvedor Java Interview Questions

Prepare-se para responder a perguntas técnicas que testam seu conhecimento básico de Java. Os entrevistadores também podem fazer perguntas abertas para avaliar suas habilidades de codificação e solução de problemas. Prepare-se para perguntas não técnicas relacionadas à sua gestão de tempo, comunicação interpessoal e ética profissional.

Principais perguntas de entrevista para desenvolvedor(a) Java e como respondê-las

Question 1

Pergunta 1: Qual é a diferença entre HashTable e HashMap no Java?

How to answer
Como responder: Os entrevistadores usam perguntas técnicas para avaliar seu treinamento formal e seu conhecimento da linguagem de programação Java. Demonstre suas habilidades de comunicação. Mesmo que você tenha bastante experiência com codificação, revise os conceitos básicos de Java antes da entrevista.
Question 2

Pergunta 2: Crie um programa para determinar se 243 é um número de Armstrong.

How to answer
Como responder: Os entrevistadores usam perguntas abertas para testar suas habilidades de codificação. Essa pergunta avalia sua capacidade de solucionar problemas usando um algoritmo Java. Explique seu raciocínio usando um editor de código ou uma lousa para resolver o problema.
Question 3

Pergunta 3: Como você cria códigos de qualidade quando precisa trabalhar em vários projetos Java ao mesmo tempo?

How to answer
Como responder: Desenvolvedores Java normalmente trabalham em vários projetos ao mesmo tempo. Os entrevistadores usam perguntas como essa para testar suas habilidades organizacionais e de gestão de tempo. Além disso, eles também avaliam seu compromisso com um trabalho de qualidade. Se você tiver experiência na área, inclua exemplos de trabalhos que demonstram alta qualidade e gestão de tempo eficaz.

30,886 desenvolvedor java interview questions shared by candidates

I liked two questions that were asked in the 2nd technical interview. 1.) Puzzel - A person can jump maximum one stair while climbing on the stair and he can do this any where in the climbing process then how many ways that person can climb on the roof if there are 10 stairs present for reaching on the roof ? 2.) Coding Question - Write a Java function that take two arguments both are string, and return true if first string is the cyclic rotated string of second otherwise return false ? Ex- First String = llohe and Second String = hello then return true First String = hello and Second String = hello then return false First String = welcome and Second String = hello then return false First String = ollhe and Second String = hello then return false
avatar

Java Developer

Interviewed at Instant Systems

4.5★
May 3, 2016

I liked two questions that were asked in the 2nd technical interview. 1.) Puzzel - A person can jump maximum one stair while climbing on the stair and he can do this any where in the climbing process then how many ways that person can climb on the roof if there are 10 stairs present for reaching on the roof ? 2.) Coding Question - Write a Java function that take two arguments both are string, and return true if first string is the cyclic rotated string of second otherwise return false ? Ex- First String = llohe and Second String = hello then return true First String = hello and Second String = hello then return false First String = welcome and Second String = hello then return false First String = ollhe and Second String = hello then return false

Aptitude questions: (1)A number of friends decided to go on a picnic and planned to spend Rs. 96 on eatables. Four of them, however, did not turn up. As a consequence, the remaining ones had to contribute Rs. 4 each extra. The number of those who attended the picnic was (2)Suresh started a business with Rs.20,000. Kiran joined him after 4 months with Rs.30,000. After 2 months, Suresh withdrew Rs.5,000 of his capital and 2 more months later, Kiran brought in Rs.20,000 more. What should be the ratio in which they should share their profits at the end of the year? (3)A man borrows Rs. 20,000 at 10% compound interest. At the end of every year he pays Rs. 2000 as part repayment. How much does he still owe after three such installments? (4)Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour each alternately, the tank will be full in (5)2 hours after a freight train leaves Delhi a passenger train leaves the same station traveling in the same direction at an average speed of 16 km/hr. After traveling 4 hrs the passenger train overtakes the freight train. The average speed of the freight train was? (6)coding-decoding reasoning (7)blood relations Technical Interview: They are asking in deep not only just basic questions so thoroughly prepare well for the basic concepts (1)String (2)Garbage collection
avatar

Java Software Engineer

Interviewed at CRMIT Solutions

3.5★
Sep 7, 2017

Aptitude questions: (1)A number of friends decided to go on a picnic and planned to spend Rs. 96 on eatables. Four of them, however, did not turn up. As a consequence, the remaining ones had to contribute Rs. 4 each extra. The number of those who attended the picnic was (2)Suresh started a business with Rs.20,000. Kiran joined him after 4 months with Rs.30,000. After 2 months, Suresh withdrew Rs.5,000 of his capital and 2 more months later, Kiran brought in Rs.20,000 more. What should be the ratio in which they should share their profits at the end of the year? (3)A man borrows Rs. 20,000 at 10% compound interest. At the end of every year he pays Rs. 2000 as part repayment. How much does he still owe after three such installments? (4)Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour each alternately, the tank will be full in (5)2 hours after a freight train leaves Delhi a passenger train leaves the same station traveling in the same direction at an average speed of 16 km/hr. After traveling 4 hrs the passenger train overtakes the freight train. The average speed of the freight train was? (6)coding-decoding reasoning (7)blood relations Technical Interview: They are asking in deep not only just basic questions so thoroughly prepare well for the basic concepts (1)String (2)Garbage collection

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