Mulethi threading and exception questions
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.
30,862 java developer interview questions shared by candidates
Why do you pick this job?
Remove duplicate characters from a string
Core Java - new Features of Java8(that’s it- no counter questions :| ) Working of hashmap ( again no counter questions) Write a singleton class and make it thread safe Comparator vs comparable
It was question about OPP -what is it
What is a pointer? What is a stack and how would you use one? How would you tell if two strings are permutations?
What is the complexity of your approaches?
Firstly they asked about your self?
What is the difference between loose coupling and tight cohesion? Case Study is to give them an insight into your design and implementation skills - at a very high level.
What is polymorphism and why is it important?
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