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The Most Popular Java Interview Questions

What is 1st and 2nd level cache in Hibernate? javafaq.io/blog/what-is-1…


What are possible states of hibernate entity? javafaq.io/blog/what-are-…


What hierarchy-to-tables mapping strategies do you know? javafaq.io/blog/what-hier…


What types of Collections are available in Hibernate? javafaq.io/blog/what-type…


What is the difference between TreeSet and LinkedHashSet? javafaq.io/blog/what-is-t…


What is the difference between synchronized block of code and synchronized method? javafaq.io/blog/what-is-t…


Please explain how wait() and notify() cooperate? javafaq.io/blog/how-wait-…


What for is the `volatile` keyword? javafaq.io/blog/what-for-…


What utils do you know from java.util.concurrent.* package? javafaq.io/blog/what-util…


What for ThreadLocal variables are needed? javafaq.io/blog/what-for-…


What is the difference between fail-fast, fail-safe and weakly consistent iterators? javafaq.io/blog/what-is-t…


What major patterns does the Java API implement? javafaq.io/blog/what-majo…


What is the difference between ArrayList and LinkedList? javafaq.io/blog/differenc…


What problems enum type resolves? javafaq.io/blog/what-prob…


Is it possible that finally block is not executed? javafaq.io/blog/is-it-pos…


What is the difference between Error and Exception? javafaq.io/blog/differenc…


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