Skip to contentSkip to footer

Senior Java Developer Interviews

Salaries
Interviews

Senior Java Developer Interview Questions

"Senior developers have years of experience in Java and have the knowledge and communication skills to mentor other developers. Companies prioritize strong technical skills and questions will focus on problem solving and critical thinking. A bachelor's degree in computer science or a related field, along with years of industry experience are standard."

5,296 senior java developer interview questions shared by candidates

1)Which Java Version worked upon? Java 8 features? Stream API? 2)Why should the sub class exceptions be used before super class exceptions in a catch block? try{ //something } catch(RuntimeException|NullPointerException|IOException e){ } will the above code work? No it is going to be an error, but why is it happening? 3)Abstract class and Interface can have methods declared and defined. So when to use abstract class, when to use interface? 4)Hashmap internal implementation? 5)We have a map to store String and Integer key-value pairs as shown below. How to store data case-insensitive? Map<String,Integer>map=new HashMap<>(); map.put("abc",10000); map.put("ABC",10000); Above mentioned map should only store one key-value pair. 6)Design patterns? 7)How to create a singleton class? How to use it in Main class? 8)Chess boards question(two 8*8 array) on how a king at a certain position can be attacked by queens? How many possible queens can attack?
avatar

Senior Java Developer

Interviewed at Bounteous x Accolite

3.4★
Jul 17, 2021

1)Which Java Version worked upon? Java 8 features? Stream API? 2)Why should the sub class exceptions be used before super class exceptions in a catch block? try{ //something } catch(RuntimeException|NullPointerException|IOException e){ } will the above code work? No it is going to be an error, but why is it happening? 3)Abstract class and Interface can have methods declared and defined. So when to use abstract class, when to use interface? 4)Hashmap internal implementation? 5)We have a map to store String and Integer key-value pairs as shown below. How to store data case-insensitive? Map<String,Integer>map=new HashMap<>(); map.put("abc",10000); map.put("ABC",10000); Above mentioned map should only store one key-value pair. 6)Design patterns? 7)How to create a singleton class? How to use it in Main class? 8)Chess boards question(two 8*8 array) on how a king at a certain position can be attacked by queens? How many possible queens can attack?

Viewing 3251 - 3260 interview questions

Glassdoor has 5,296 interview questions and reports from Senior java developer interviews. Prepare for your interview. Get hired. Love your job.