Java Interview Questions · interview question
In Java, which comparison about ExecutorService, Future, and CompletableFuture is accurate?
Multiple choiceEasyjava-interview-2026interviewjavacomparison
Answer and explanation
Correct answer
A. Future mainly exposes pending completion, while CompletableFuture supports non-blocking chaining, combination, and callbacks.
Why
Future mainly exposes pending completion, while CompletableFuture supports non-blocking chaining, combination, and callbacks. This is the comparison that usually separates memorization from understanding.
Test yourself on Java Interview Questions
A free test with instant, explained results. No account needed.
More Java Interview Questions questions
- When should a Java developer choose TreeSet and NavigableSet deliberately?
- Which practice avoids a common mistake with Java Memory Model, volatile, and synchronized?
- When should a Java developer choose ConcurrentSkipListMap deliberately?
- In Java, which comparison about ArrayList vs LinkedList is accurate?
- What deeper point about ArrayList vs LinkedList should a senior Java developer mention?
- Which practice avoids a common mistake with equals() vs ==?