When might the finally block not execute?
Senior
144
Java
14621
265
What is the difference between onErrorResume and onErrorReturn?
Senior
144
How can you generate a description of the configuration and characteristics of a web server?
Junior — Middle
143
If we want to make operations on our Data map thread-safe, how can we do this besides using ConcurrentHashMap?
Senior
143
Is it permissible to modify the size of the allocated memory area in dynamic placement (heap)?
Junior — Middle
143
Table person with a list of employees id name 1 Petya 2 Vasya 3 Kolya Table payment with salary accruals id person_id payment_value [phone] It is necessary to write a query to select the names of employees with total accruals greater than 100
Senior
143
What is the default isolation level in PostgreSQL?
Senior
143
What is the Sidecar pattern and what is it used for?
Senior
142
What is multi-catch in Java? What are the limitations and rules?
Senior
142
Why is it recommended to use POST instead of GET requests for confidential data?
Senior
142
Evaluate the model for use in ArrayList, HashMap, TreeSet static public final class Transaction<T extends Number> implements Comparable<Transaction> { private final T id; private final Double amount; private final java.util.Date timestamp; public Transaction(T id, double amount, java.util.Date timestamp) { this.id = id; this.amount = amount; this.timestamp = timestamp; } public T getId() { return id; } public Double getAmount() { return amount; } public java.util.Date getTimestamp() { return timestamp; } @Override public boolean equals(Object o) { if (this == o) return true; if (!(o instanceof Transaction t)) return false; return id == t.id && Double.compare(amount, t.amount) == 0 && timestamp.equals(t.timestamp); } @Override public int hashCode() { return Objects.hash(id, timestamp); } @Override public int compareTo(Transaction other) { return this.timestamp.compareTo(other.timestamp); } }
Senior
141
What is doOnNext in Reactor?
Senior
141
How to determine a specific Bean for dependency injection based on context?
Junior — Middle
141
What design patterns do you use? Why are they needed?
Senior
141
What is happens-before and what is its relation to JIT optimization?
Senior
140
What is the difference between hot and cold streams in reactive programming?
Senior
140
What are schedulers in Reactor?
Senior
138
Spring: How to resolve a conflict of beans of the same class?
Senior
138
What is the acronym PECS (Producer Extends, Consumer Super) in Java generics?
Senior
137
Why might a method with @Transactional not create a transaction?
Senior
137