Java

Can two methods declared with the synchronized keyword inside a singleton controller run simultaneously?

What reasons make creating indexes on every field in a table undesirable or undesirable?

Why is the use of hash tables considered outdated or undesirable in modern development?

What tools did you use for developing automated tests?

Why are immutable objects used in programming?

Can two static methods declared with the synchronized modifier be executed simultaneously within a singleton controller?

How is thread safety implemented in the Hashtable data structure?

What is the purpose of mutable objects in programming?

Is it possible to use an object of the User class with mutable attributes as a key in a HashMap, and what are the consequences of doing so?

What mechanisms ensure thread safety in ConcurrentHashMap?

Can you explain how data partitioning is implemented in database management systems?

Explain what a CompletableFuture class is and how it is used for asynchronous task handling in Java.

Junior — Middle

ДемиусИннотех

What methods can be used to create a collection that is safe for use in a multithreaded environment?

Can you explain the concept of data sharding in data storage systems?

Explain the differences between Future and CompletableFuture classes in the context of asynchronous programming in Java.

Junior — Middle

ДемиусИннотех

Can you explain what replication means in database management systems?