Q. What is the difference between Singleton and Immutable object
Cognizant Technology Solutions Java Developer Interview Questions
Cognizant Technology Solutions 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 your work ethic.
Top Java Developer Interview Questions & How to Answer
Question 1
Question No. 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 No. 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 No. 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 organisational 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.
271 java developer interview questions shared by candidates
How do you nullify or remove the unused objects from memeory?
What are some of the Immutable classes in Java?
Core Java, Spring, Hibernate
He asked me to write a code, asked various questions on data structures, dbms and oops.
They Asked SQL, JAVA, Web each of 2,2,1 respectively
There were series of questions without giving any time to answer or to think. If the panel was running out of time, they should have rescheduled the interview.
java basic questions
Why do we use maven
How does micro servics communicates?
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