Java collection , streams, functional interface etc
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
What's the difference between JPA and hibernate?
A class having two synchronized methods, one static and other non static. Can two threads concurrently access this object?
Parse a string of files and sizes from different formats, and calculate the total size of each type, and the total size of all of them.
Truth table for 4 variable. HashMap in Java
They did not ask many direct or technical questions. Overall, I asked many more questions than they did.
1st Technical Discussion: [Virtual 2 Persons] Quick Brief about current project Questions were on Core java concepts [ Concurrency,Collections ] , Design pattern ,System Design and one problem solving. 1) Generate chess board pattern [Alternative B/W boxes] 2) Discussion on REST architecture .why REST ? 3) Singleton Design Pattern [Thread Safe implementation] 4) Producer-Consumer Problem 5) Design Rate limiter 6) Database Sharding 7) Few questions on Angular
Do you know JUnit
I would have known if they were professional and showed up to the meeting.
whats is inheritance
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