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.
The three programming paradigms — structured, object-oriented, and functional — each impose discipline by removing capabilities from the programmer. Martin shows how each paradigm maps directly to a fundamental concern of software architecture.
Functional programming's core discipline — immutability — eliminates entire classes of concurrency bugs. Learn how immutability, segregation of mutability, and event sourcing shape modern system design.
In-depth architectural analysis of Java's core functional interfaces (Supplier, Consumer, Function, Predicate), JVM invokedynamic mechanics, LambdaMetafactory linkage, capturing closures vs singleton caching, and replacing GoF Factory patterns with modern functional registries.
Comprehensive answers to Java Generics, JDBC, and Java 8 Stream & Functional Programming interview questions.
