#Java

Can you use a try block without an associated catch block in Java? If yes, under what circumstances?

What is a Concurrent Modification Exception, and in what scenarios does it occur? Explain the concepts of fail-fast and fail-safe iterators.

Explain the concepts of polymorphism, inheritance, the static keyword, as well as the equals and hashcode methods in Java. Provide examples where applicable.

What are Java garbage collection mechanisms? Explain multithreading and its importance in Java applications.

How would you design a thread-safe singleton class in Java? Explain the different methods and their trade-offs.