50+ Real & Tricky Java 8 Interview Questions
A comprehensive summary of conceptual and scenario-based Java 8+ interview questions.
A comprehensive summary of conceptual and scenario-based Java 8+ interview questions.
DynamoDB mastery for DVA-C02. Covers partition keys, sort keys, GSI vs LSI, read/write capacity modes, DynamoDB Streams, DAX, TTL, transactions, and the most common exam scenarios and anti-patterns.
Complete guide to Java Stream pipelines: creating streams, intermediate vs terminal operations, Optional, Collectors (groupingBy, partitioningBy, joining, teeing), primitive streams, flatMap, lazy evaluation, and parallel streams with thread-safety warnings.
Complete guide to lambda expressions, method references, built-in functional interfaces (Supplier, Consumer, Function, Predicate, UnaryOperator, BinaryOperator), variable capture rules, and functional composition with andThen/compose.
Advanced DynamoDB topics for DVA-C02. DynamoDB Streams with Lambda, PartiQL, Enhanced Client for Java, optimistic locking, single-table design patterns, and Write Sharding.
Comprehensive answers to Java Generics, JDBC, and Java 8 Stream & Functional Programming interview questions.
Complete guide to Redis Streams — append-only logs, consumer groups, message acknowledgement, and comparison with Kafka for senior engineers.