Quick study sessions to strengthen memory and retain key concepts.
How do you perform an atomic increment with AtomicInteger?
Use the incrementAndGet() method. Frame the concept in practical terms so you can explain it during interview discussion.…
View Card →Why do teams use Atomic classes in Java in production code?
Atomic classes provide lock-free thread-safe operations. The primary benefit of using Atomic classes, such as AtomicInteger and AtomicReference,…
View Card →When is AtomicReference insufficient for thread safety?
AtomicReference is insufficient for complex state changes involving multiple variables. AtomicReference is great for atomically managing a single…
View Card →Why might AtomicInteger be preferred over synchronized blocks?
AtomicInteger is preferred for higher performance due to non-blocking updates. AtomicInteger can perform updates without locking, which reduces…
View Card →How does Compare-And-Swap (CAS) avoid blocking in Java?
CAS updates a value only if it matches an expected value, allowing non-blocking updates. Compare-And-Swap (CAS) is a…
View Card →How would you explain an AtomicInteger in a Java interview?
An AtomicInteger is a class that provides an integer value that can be updated atomically. AtomicInteger is part…
View Card →What happens if you add a null value to a HashSet?
HashSet allows one null element. Frame the concept in practical terms so you can explain it during interview…
View Card →Why is it crucial to understand hashCode() and equals() in Java?
They determine object identity and behavior in collections. Understanding hashCode() and equals() is essential for correctly using collections…
View Card →Design choice: Why use HashSet for an in-memory catalog?
To efficiently manage unique items and fast lookups. HashSet is ideal for an in-memory catalog where each item,…
View Card →How does a poor hash function affect HashSet performance?
It leads to more collisions, degrading performance to O(n). A poor hash function that causes many collisions can…
View Card →