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30,897 developer java interview questions shared by candidates

Store the elements in a stack and have a function that returns the minimum value without iterating again over it. Design an auto-complete mechanism similar to google's autocomplete mechanism. What are default methods in Interfaces in Java 8 , why are they needed? If a class extends two interfaces having the same default method , what will happen then How will you make an Employee class as your HashMap key.
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Java Software Engineer

Interviewed at Accenture

3.7★
Apr 7, 2021

Store the elements in a stack and have a function that returns the minimum value without iterating again over it. Design an auto-complete mechanism similar to google's autocomplete mechanism. What are default methods in Interfaces in Java 8 , why are they needed? If a class extends two interfaces having the same default method , what will happen then How will you make an Employee class as your HashMap key.

2nd F2F Questions:- Difference between == and equals operator Why String is immutable - Explain with example What is String Constant Pool What is DeadLock , Synchronization , Use of Transient and Volatile Keyword Runnable vs Thread Questions in Advanced concepts if you know them-> I didn't ;) SQL :- Simple DML & DDL queries , Query to join two tables What is Normalization and it types What is ACID
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Java Developer

Interviewed at Thinkitive Technologies

4.5★
Aug 27, 2019

2nd F2F Questions:- Difference between == and equals operator Why String is immutable - Explain with example What is String Constant Pool What is DeadLock , Synchronization , Use of Transient and Volatile Keyword Runnable vs Thread Questions in Advanced concepts if you know them-> I didn't ;) SQL :- Simple DML & DDL queries , Query to join two tables What is Normalization and it types What is ACID

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