Java Tricky Interview Questions for Experienced Professionals

Java Tricky Interview Questions for Experienced Professionals

Here are some tricky Java interview questions suitable for experienced professionals:

Not a Premium Medium member? Click here to access it for free!

1. Question: Explain the difference between HashMap and ConcurrentHashMap in Java.
2. Question: What is the purpose of the transient keyword in Java? How does it differ from static and final keywords?
3. Question: How does the volatile keyword work in Java? When would you use it?
4. Question: Explain the concept of Java memory model (JMM) and its significance in multi-threaded programming.
5. Question: What are the benefits of using Java 8 features such as lambda expressions, streams, and functional interfaces? Provide examples of their usage.
6. Question: Discuss the advantages and disadvantages of using Java serialization for object persistence. What alternatives would you consider?
7. Question: How does garbage collection work in Java? Explain different types of garbage collectors available in the JVM.
8. Question: What is reflection in Java? Provide examples of scenarios where reflection is useful and discuss its limitations.
9. Question: Explain the principles of design patterns and…