What is the difference between using synchronizedMap and ConcurrentHashMap to ensure thread safety in collections?
297
Java
14621
265
How can a pessimistic locking mechanism be implemented to ensure data integrity in a multithreaded environment?
273
How to correctly implement the hashCode and equals methods in a class?
Junior — Middle
268
Explain the purpose and features of using the volatile keyword in programming.
259
Explain the principle of the optimistic locking method in managing concurrent data access.
Junior — Middle
247
Explain the concept of full locking in database management and its features.
245
Is it possible to implement multiple inheritance in Java?
Junior — Middle
241
241
Have you worked with the CompletableFuture class for asynchronous programming in Java?
Junior — Middle
232
232
How is the configuration and registration of a Bean carried out within the Spring Framework?
Junior — Middle
228
Can you list the main methods provided by the Stream API in Java?
227
Can you explain what the load factor metric means in the HashMap data structure?
Junior — Middle
225
221
What is the time complexity of inserting an element into a HashMap in the worst-case scenario?
Junior — Middle
221
Can you name the main modules of the Spring framework that you use or know?
Junior — Middle
217
Can you explain what a call stack is and how it is used in programming?
Junior — Middle
214
Can you explain the stages of the bean lifecycle in Spring Framework?
213
Can you explain the main differences between the Adapter, Facade, and Proxy patterns and in which situations it is better to use them?
Junior — Middle
212
Can you name and describe with an example the most common thread-safe collections in Java?
Junior — Middle
212