Java Junior Interview Questions

4,079 java junior interview questions shared by candidates

Personal and career questions, how would you handle conflict in the workspace, Enterprise knowledge questions at the market level, competitors, industry. Questions about technical concepts of main technology implementations in the company. Ended with 15 min multiple choice extensive test "not intended to be finished in 15 min". Front and Back end language basic questions.
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Junior Java Programmer

Interviewed at Intact

3.9
Jul 30, 2018

Personal and career questions, how would you handle conflict in the workspace, Enterprise knowledge questions at the market level, competitors, industry. Questions about technical concepts of main technology implementations in the company. Ended with 15 min multiple choice extensive test "not intended to be finished in 15 min". Front and Back end language basic questions.

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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