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Senior Java Developer Interview Questions

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5,531 senior java developer interview questions shared by candidates

1.Java 8 new features 2. Difference between Interface and abstract class 3. How to iterate HshMap 4. Asked Scenario based question on Template Design Pattern ( there is one interface hving 4 methods. you have to implement in a way such that all methods should execute one after another. 5. Inner Join Question to get matched records from two tables 6. classic Sql question. There is no Primary or foreign key in table. Hw to get Unique columns from each department and employee. 7. What are the design patterns you have worked on? 8. Roles and Responsibilities of all the projects . 9. How to achieve thread safety for a class. 10. what is class level and object level locking 11. Spring Bean scopes. 12. Parent and child class scopes related question. Parent is singleton and child is Prototype etc. 13. Generics advantage.
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Senior Java Developer

Interviewed at App Orchid

4.1★
Jul 17, 2018

1.Java 8 new features 2. Difference between Interface and abstract class 3. How to iterate HshMap 4. Asked Scenario based question on Template Design Pattern ( there is one interface hving 4 methods. you have to implement in a way such that all methods should execute one after another. 5. Inner Join Question to get matched records from two tables 6. classic Sql question. There is no Primary or foreign key in table. Hw to get Unique columns from each department and employee. 7. What are the design patterns you have worked on? 8. Roles and Responsibilities of all the projects . 9. How to achieve thread safety for a class. 10. what is class level and object level locking 11. Spring Bean scopes. 12. Parent and child class scopes related question. Parent is singleton and child is Prototype etc. 13. Generics advantage.

How can we compare two binary trees to mention whether they are identical ? Algorithm complexity of Max Stock Price Difference. spring Boot Framework Related Questions Project specific complexities or Challenges addressed
avatar

Senior Java Developer/Lead

Interviewed at App Orchid

4.1★
Aug 1, 2023

How can we compare two binary trees to mention whether they are identical ? Algorithm complexity of Max Stock Price Difference. spring Boot Framework Related Questions Project specific complexities or Challenges addressed

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