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Junior Java Developer Interview Questions

"Junior developers are often responsible for writing the more monotonous and simple code required by senior members of the development team. Because of this, interviews will be designed to test your knowledge of the fundamentals of Java so be prepared to answer technical questions that you likely came across in college. Data structures and algorithms will be heavily emphasised. A bachelor's degree or equivalent work experience is required. "

3,801 junior java developer interview questions shared by candidates

Write the commands to create directories for music, movies and photos. Move all files that end with .mp3 to the music folder, all files that end with .mov to the movie folder and all files that end with .jpg to the photos folder. Delete all files that end with .log.
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Junior Java Developer

Interviewed at Prime IT

3.7★
Jun 18, 2024

Write the commands to create directories for music, movies and photos. Move all files that end with .mp3 to the music folder, all files that end with .mov to the movie folder and all files that end with .jpg to the photos folder. Delete all files that end with .log.

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?

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