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Senior Java Developer Interview Questions
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1. Priority Queue code snippet, select the correct output 2. LeetCode climbing stairs problem - need to make test cases pass 3. Given a URL, need to send Rest request with given data and extract Restful response and extract String output from the JSON response and print to the console
How are indexes typically implemented in a database like PostgreSQL? (Follow-up: B+ tree)
Can two different objects have the same hash code? What is the impact of a poorly implemented equals() and hashCode()?
What is "flushing" in the context of Hibernate? When does an "auto-flush" typically occur and why?
Asked to explain a particular architectural design pattern (was familiar with it but did not know the actual name).
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Write a program in java for Stack push/pop operations
jre, jdk, jwm,spring, rest controller vs controller,singleton, lombok,microservices, sql
If you run N threads, how many heaps and how many stacks are created inside the JVM?
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