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Senior Developer Java Interview Questions

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5,296 senior developer java interview questions shared by candidates

How to design Parking lot in Java? How to sort a 10 GB file contains integers on a system which can process only 2 GB resource at a time ? How my Hashmap will look like if I insert employee object in it as key and value and I have overridden hashcode method which returns 1 always and equals method which returns false. how micro services communicates with each other ? What is service discovery ?
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Senior Java Developer

Interviewed at Synechron

4.1★
Sep 6, 2020

How to design Parking lot in Java? How to sort a 10 GB file contains integers on a system which can process only 2 GB resource at a time ? How my Hashmap will look like if I insert employee object in it as key and value and I have overridden hashcode method which returns 1 always and equals method which returns false. how micro services communicates with each other ? What is service discovery ?

Basic quetions related java What is protected What is inheritance which Collection you used How we can use custom class of object in Map write a hashCode method iterate map using stream API Quetions about main What is @SpringBootAnnotation What is @Configuration What is use of @Quilifer write actual use case of qualifer and some programs
avatar

Senior Java Developer

Interviewed at Synechron

4.1★
Jul 12, 2023

Basic quetions related java What is protected What is inheritance which Collection you used How we can use custom class of object in Map write a hashCode method iterate map using stream API Quetions about main What is @SpringBootAnnotation What is @Configuration What is use of @Quilifer write actual use case of qualifer and some programs

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