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Software Developer Java Interview Questions

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4,203 software developer java interview questions shared by candidates

1. What is static in public static void main 2. Why java program starts from main' 3. Checked and Unchecked exceptions with examples 4. Custom exception handling 5. Java 8 features : Optional class, functional interface 6. OOPS concepts 7. method overloading and over ridding 8. When is overriding used 9. Unreachable catch block 10. Why is string immutable 11. Difference between string Builder and Buffer 12. what are the components in @springBootApplication 13. Agile methodology 14. Design patterns 15. What does static keyword do 16. Can static methods be overloaded 17. valueOf() Some logic based coding Questions on previous projects
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Software Engineer - Java Developer

Interviewed at Wipro

3.6★
May 31, 2024

1. What is static in public static void main 2. Why java program starts from main' 3. Checked and Unchecked exceptions with examples 4. Custom exception handling 5. Java 8 features : Optional class, functional interface 6. OOPS concepts 7. method overloading and over ridding 8. When is overriding used 9. Unreachable catch block 10. Why is string immutable 11. Difference between string Builder and Buffer 12. what are the components in @springBootApplication 13. Agile methodology 14. Design patterns 15. What does static keyword do 16. Can static methods be overloaded 17. valueOf() Some logic based coding Questions on previous projects

In interview 1st question was tell me about yourself as expected,After that he came to my project he was asking again and again some doubts on my project if you will tell something about your project he will ask some questions from your explaination.After that he moved to java some questions on interface,adt,dynamic static,why public static void main,some questions on hacking facebook account.about 30 mina he took my interview.Interview was good answered all questions except 2 but not got selected. I didn't said good morning and may i sit all and shake hand with him.That might be reason for rejection I think....! for 1st apti there were 100 students,after that for technical apti approximately 50 were selected.then through tech apti 8 were selected was among those.. and after interview 2 were selected
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Software Engineer Trainee Java

Interviewed at Zycus

3.5★
Oct 24, 2014

In interview 1st question was tell me about yourself as expected,After that he came to my project he was asking again and again some doubts on my project if you will tell something about your project he will ask some questions from your explaination.After that he moved to java some questions on interface,adt,dynamic static,why public static void main,some questions on hacking facebook account.about 30 mina he took my interview.Interview was good answered all questions except 2 but not got selected. I didn't said good morning and may i sit all and shake hand with him.That might be reason for rejection I think....! for 1st apti there were 100 students,after that for technical apti approximately 50 were selected.then through tech apti 8 were selected was among those.. and after interview 2 were selected

3rd Round - Technical HR Questions: 1. Given an 'n' size ArrayList. We have to process and store the elements in sub-lists based on the size of ArrayList. Consider an ArrayList of size 14, then we have to store first 10 elements in one list and next 4 elements in one list. 2. Self Introduction 3. About my projects. Here, while explaining whatever I told that I have worked, they started questioning on that topics.
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Software Engineer - Java Developer

Interviewed at Zycus

3.5★
Nov 6, 2017

3rd Round - Technical HR Questions: 1. Given an 'n' size ArrayList. We have to process and store the elements in sub-lists based on the size of ArrayList. Consider an ArrayList of size 14, then we have to store first 10 elements in one list and next 4 elements in one list. 2. Self Introduction 3. About my projects. Here, while explaining whatever I told that I have worked, they started questioning on that topics.

AWS related questions: How would you use third party domain in conjunction with an AWS services? Horizontal vs. Vertical scaling. What AWS services would you use for a website? give answers for both Static and Dynamic What NoSQL database experience do you have? DynamoDB?
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Software Engineer - Java Developer

Interviewed at AND Digital

2.8★
Jul 13, 2021

AWS related questions: How would you use third party domain in conjunction with an AWS services? Horizontal vs. Vertical scaling. What AWS services would you use for a website? give answers for both Static and Dynamic What NoSQL database experience do you have? DynamoDB?

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