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3,831 junior java developer interview questions shared by candidates

Q. What is the difference between static type language and dynamic type languages? Q What is a garbage collector? Q what is the function of the finally() method in java? Q What is stack and heap in memory? Q. What is the time performance of the following? Linked List Trees Stack and Queues Heaps Recursive Function – O(n) Fibbinoci ArrayList Hashtable -O(1) Binary Search - O(logn) Q What are the pillars of OOP? Q Difference between Abstract Class and Interface? Q Multiple inheritances in interfaces? Q What is Polymorphism?
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Junior Java Developer

Interviewed at General Dynamics Information Technology

3.9★
Feb 17, 2021

Q. What is the difference between static type language and dynamic type languages? Q What is a garbage collector? Q what is the function of the finally() method in java? Q What is stack and heap in memory? Q. What is the time performance of the following? Linked List Trees Stack and Queues Heaps Recursive Function – O(n) Fibbinoci ArrayList Hashtable -O(1) Binary Search - O(logn) Q What are the pillars of OOP? Q Difference between Abstract Class and Interface? Q Multiple inheritances in interfaces? Q What is Polymorphism?

N/A Brief project introduction 2. Why do we use Springboot? What are the advantages of Springboot over Spring MVC? 3.Spring MVC flow. 4. Why Microservice? Advantages of microservice. 5. Arraylist , linkedlist , iterators 6. Hashmap and it's internal implementation. 7. Difference between ABSTRACT CLASS AND INTERFACE 8. Difference between method overloading and overrriding.
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Junior Java Developer

Interviewed at Accenture

3.7★
Apr 12, 2022

N/A Brief project introduction 2. Why do we use Springboot? What are the advantages of Springboot over Spring MVC? 3.Spring MVC flow. 4. Why Microservice? Advantages of microservice. 5. Arraylist , linkedlist , iterators 6. Hashmap and it's internal implementation. 7. Difference between ABSTRACT CLASS AND INTERFACE 8. Difference between method overloading and overrriding.

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