Java 8+ Functional

• ▸ functional Parallel streams — when do they actually help?FREE
• ▸ functional Stream laziness — intermediate vs terminal operations
• ▸ functional Optional — the right and wrong ways to use it
• ▸ functional Method references — the four kinds
• ▸ functional forEach vs the for-each loop
• ▸ functional Collectors beyond toList — groupingBy, partitioningBy and toMap traps
• ▸ functional Lambdas vs anonymous inner classes
• ▸ functional Functional interfaces — the rules and @FunctionalInterface
• ▸ functional Why Java 8 added default methods
• ▸ functional reduce vs collect — when each
• ▸ functional Function, Supplier, Consumer, Predicate — the built-in interfaces
• ▸ functional map vs flatMap
• ▸ functional peek — debugging aid or trap?
• ▸ functional What a lambda really compiles to
• ▸ functional Effectively final — what lambdas are allowed to capture
• ▸ functional Stateful stream operations — sorted, distinct and their hidden cost
• ▸ functional IntStream and friends — avoiding boxing in streams
• ▸ functional Function composition — andThen and compose
• ▸ functional Infinite streams — iterate, generate and takeWhile