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Java Developer Interviews
Java Developer Interview Questions
In your interview for a java developer position, be prepared to answer technical questions that test your understanding of Java basics. Interviewers may also ask open-ended questions to assess your coding and problem-solving abilities. Prepare for non-technical questions that focus on time management, interpersonal communication, and work ethic.
Top Java Developer Interview Questions & How to Answer
Question 1
Question #1: What is the difference between HashTable and HashMap in Java?
How to answer
How to answer: Interviewers use technical questions to assess your formal training and understanding of the Java programming language. Use your answer to demonstrate your communication skills. Even if you have been coding for some time, it can be helpful to review Java basics before your interview.
Question 2
Question #2: Write a program to determine if 243 is an Armstrong number.
How to answer
How to answer: Interviewers use open-ended questions to test your coding skills. This question allows the employer to assess your ability to solve a problem using a Java algorithm. Explain your thinking process as you use a code editor or whiteboard to solve the problem.
Question 3
Question #3: How do you produce quality code when you have several Java projects to complete at once?
How to answer
How to answer: Java developers often juggle multiple projects at the same time. Interviewers use questions such as this to test your time management and organizational skills. Employers are also trying to assess your commitment to quality work. If you have experience as a developer, include examples from your work history that demonstrate high-quality work and effective time management.
30,850 java developer interview questions shared by candidates
How does Spring @Transactional work in the background.
I was free for 1 year so they asked me what have I done in that time
Infinite while loop
Collections framework
What are your goals?
1. Initially Lot of those cliché questions like "what was the most challenging project?, why it was challenging? what was your role? what particular task made it challenging? Why not tried some other way? What did you learn from that experience?" 2. The HR person asked me lot of critical thinking questions. lot of them were on internet... :) 3. Asked why do I like consulting, and why not try for a permanent job at some big company ?
how can you tackle the bug fixing after you realize that code was incorrect in prod ?
Programs: Q1. A={32,4,54,3,54,23,1,43,2,7,86,55} and B={6,5,32,44,12,23,64,76,56} Compare these to arrays with their elements. Q2. Write a program to check whether the number is palindrome or not.
Mostly they asks on Core java topics like Collections, Strings, Exceptions, Then they will go to the frameworks like you worked on. Infobrain completely using Struts frameworks. Better you prepare on it.
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