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Previous Chapter

Appendix D. Lambdas and JVM bytecode

List of Figures

Index

[SYMBOL][A][B][C][D][E][F][G][H][I][J][K][L][M][N][O][P][R][S][T][U][V][W]

SYMBOL

:: operator, 2^nd ? wildcard { } (curly braces) => operator -> (arrow) <> (diamond operator)

A

abstract classes abstracting on type accept method accumulateAndGet method accumulator method addExact method addTo method allMatch method, 2^nd allOf method and method andThen method annotations overview repeated type anonymous functions, 2^nd. See also lambda expressions. anyMatch method, 2^nd Apache Commons Collections library ArrayList class arrays building streams from parallelPrefix method parallelSetAll method parallelSort method setAll method atOffset method atomic package atZone method autoboxing availableProcessors method, 2^nd, 3^rd averagingDouble method averagingInt method, 2^nd averagingLong method

B

BASIC_ISO_DATE constant @Before annotation behavioral compatibility between method BiConsumer interface BiFunction interface big data binary compatibility BinaryOperator interface BiPredicate interface BlockingQueueSpliterator class BooleanSupplier interface boxing bytecode, 2^nd byteValueExact method

C

C/C++, 2^nd C#, 2^nd, 3^rd caching, 2^nd Calendar class calendar systems call by name capturing lambdas chain of responsibility design pattern characteristics method characteristics of Spliterator interface Checker framework Chronology interface ChronoUnit enumeration classes anonymous Scala classification function closures, 2^nd collect method, 2^nd, 3^rd, 4^th, 5^th collectingAndThen method, 2^nd Collection interface collection literal Collections class Collector interface accumulator method characteristics method combiner method finisher method overview supplier method collectors as advanced reductions creating custom example of performance of finding maximum and minimum values generalized summarization with reduction joining strings overview predefined summarization Collectors class, 2^nd combinators combiner method, 2^nd combining optionals Compact Profiles Comparator interface, 2^nd compareUnsigned method comparingDouble method comparingInt method comparingLong method compatibility, types of completeExceptionally method compute method computed on demand computeIfAbsent method computeIfPresent method computing clusters concise code, 2^nd concurrency adders and accumulators atomic package CONCURRENT characteristic conditional deferred execution constructor references Consumer interface count method, 2^nd counting method CPUs, multicore, 2^nd curly braces { } currying, 2^nd

D

daemon threads data structures, persistent destructive updates vs. functional Tree example data structures, Scala creating collections immutable vs. mutable collections manipulating collections option stream tuples Date class DateFormat class DateTimeException DateTimeFormatter class, 2^nd DateTimeFormatterBuilder class DateTimeParseException Daylight Saving Time. See DST. dayOfWeekInMonth method declaration-site variance declarative declarative programming decrementExact method default modifier defensive checking @Deprecated annotation destructive updates vs. functional diamond operator ( <> ) diamond problem DISTINCT characteristic distinct method, 2^nd, 3^rd divideUnsigned method don’t repeat yourself. See DRY principle. DoubleAccumulator class DoubleAdder class DoubleBinaryOperator interface DoubleConsumer interface DoublePredicate interface DoubleStream interface DoubleSupplier interface DoubleUnaryOperator interface DRY (don’t repeat yourself) principle DST (Daylight Saving Time) Duration class

E

empty method empty optional objects emptyList method encounter order erasure model error handling estimateSize method, 2^nd event handling EventHandler class Exception parameter Executable class execute around pattern behavior parameterization and executing behavior improving code flexibility overview passing lambda expressions using functional interface ExecutionException Executor interface ExecutorService interface, 2^nd external iteration, 2^nd extracting data

F

factory design pattern Fibonacci series Files class, 2^nd files, building streams from filter method, 2^nd, 3^rd, 4^th, 5^th, 6^th filtering streams with predicate skipping elements truncating stream unique elements find method findAny method, 2^nd findFirst method, 2^nd finish method finisher method first-class functions, 2^nd firstDayOfMonth method firstDayOfNextMonth method firstDayOfNextYear method firstDayOfYear method firstInMonth method flatMap method, 2^nd, 6^th dereferencing chain using optionals finding car insurance company name example overview flattening streams floorDiv method floorMod method for loop forEach method, 2^nd, 3^rd, 4^th forEachRemaining method fork method, 2^nd forking step ForkingStreamConsumer class ForkJoinPool class, 2^nd format method format package free variables from method, 2^nd function composition function descriptors, 2^nd, 3^rd, 4^th Function interface, 2^nd @FunctionalInterface annotation

G

generate method generic polymorphism generics, 2^nd get method, 2^nd, 3^rd, 4^th, 5^th getAndAccumulate method getAndUpdate method getAnnotationsByType method getOperationResult method getOrDefault method getResults method getRuntime method getters and setters in Scala Groovy, 2^nd, 3^rd grouping data, 2^nd groupingBy method, 2^nd, 3^rd Guava library

H

hashcodes HashSet class Haskell, 2^nd higher-order functions, 2^nd HijrahDate class

I

identity function IDENTITY_FINISH collection, 2^nd IDEs (integrated development environments) ifPresent method, 2^nd, 3^rd immutability, 2^nd IMMUTABLE characteristic, 2^nd immutable collections imperative programming imperative-style Scala implicit data dependences incrementExact method inference of generic arguments infinite stream Instant class IntBinaryOperator interface IntConsumer interface integrated development environments. See IDEs. IntelliJ intermediate operations, 2^nd internal iteration characteristics of streams external iteration vs. IntFunction interface IntPredicate interface IntStream interface IntSupplier interface IntToDoubleFunction interface IntToLongFunction interface IntUnaryOperator interface intValueExact method invoke method invokedynamic instruction, 2^nd isDone method Islamic calendar isNegative method ISO_LOCAL_DATE constant isPresent method, 2^nd isPrime method isZero method iterate method, 2^nd iteration vs. recursion

J

JapaneseDate class Java Concurrency in Practice Java virtual machine. See JVM. java.util.concurrent.ForkJoinPool.common.parallelism property JavaFX JDK Enhancement Proposal join method, 2^nd, 3^rd joining method, 2^nd, 3^rd joining strings using collectors

K

keySet method

L

lambdaj library lastDayOfMonth method lastDayOfNextMonth method lastDayOfNextYear method lastDayOfYear method lastInMonth method late-binding Spliterator lazy evaluation self-defining stream using lazy list limit method, 2^nd, 3^rd, 4^th, 5^th lines method LinkedList class list method local variables in lambda expressions LocalDate class LocalDateTime class LocalTime class logicalAnd method logicalOr method logicalXor method LongAccumulator class LongAdder class LongBinaryOperator interface LongConsumer interface LongFunction interface LongPredicate interface LongStream interface LongSupplier interface LongToDoubleFunction interface LongToIntFunction interface LongUnaryOperator interface longValueExact method

M

Map interface map method, 2^nd, 3^rd, 4^th, 5^th, 6^th, 7^th mapping streams applying function to each element arrays flatMap method numeric mappingCount method map-reduce mapToDouble method mapToInt method mapToLong method Math class mathematical function mathematics and lambda expressions max method, 2^nd maxBy method, 2^nd Maybe type memoization, 2^nd merge method min method minBy method, 2^nd MinguoDate class minus method, 2^nd multicore processors, 2^nd multilevel matching multipliedBy method multiplyExact method multithreading streams and Streams API and

N

Nashorn naturalOrder method NavigableMap class NavigableSet class negate method negated method negateExact method NetBeans next method nextDown method nextOrSame method NIO API non-blocking code defined making asynchronous requests overview scaling and using custom Executor using parallel stream noneMatch method, 2^nd @NonNull annotation NONNULL characteristic non-strict evaluation now method NullPointerException nullsFirst method nullsLast method Number class NumberFormatException

O

ObjDoubleConsumer interface object-oriented programming. See OOP. ObjIntConsumer interface ObjLongConsumer interface observer design pattern of method, 2^nd, 3^rd, 4^th ofEpochSecond method OffsetDateTime class ofLocale method ofNullable method, 2^nd ofPattern method OOP (object-oriented programming), 2^nd. See also Scala. option type, Scala optional methods OptionalDouble class, 2^nd OptionalInt class, 2^nd OptionalLong class, 2^nd or method ORDERED characteristic, 2^nd orElse method, 2^nd, 3^rd orElseGet method, 2^nd orElseThrow method, 2^nd

P

parallel method parallelization, 2^nd, 3^rd, 4^th parallelPrefix method parallelSetAll method parallelSort method parallelStream method, 2^nd Parameter class parse method, 2^nd parseUnsignedInt method partial functions partially applied function, 2^nd partitioning function partitioningBy method, 2^nd, 3^rd passing code to methods. See behavior parameterization. performance custom collectors parallel streams Period class plus method, 2^nd polymorphism Predicate interface previous method previousOrSame method primitive optionals programming language ecosystem purity putIfAbsent method Pythagorean triples example filtering good combinations generating a values generating b values generating tuples Pythagorean triples explained representing triple running code solution

R

randomDelay method rangeClosed method, 2^nd ranges, streams of readability, improving for code recursion vs. iteration RecursiveTask class reduce method, 2^nd, 3^rd, 4^th reducing method, 2^nd refactoring from anonymous classes to lambda expressions from imperative data processing to streams improving code flexibility conditional deferred execution execute around pattern using functional interfaces improving readability from lambda expressions to method references object-oriented design patterns with lambdas chain of responsibility design pattern factory design pattern observer design pattern overview strategy design pattern template method design pattern referential transparency, 2^nd reflection registering actions reified generics remainderUnsigned method remove method removeIf method repeated annotations replace method replaceAll method, 2^nd Results interface reverse method reversed method reverseOrder method Runnable interface RuntimeException

S

safe navigation operator Scala, 2^nd, 3^rd classes in creating getters and setters data structures creating collections immutable vs. mutable collections manipulating collections option stream tuples functional-style functions in anonymous functions closures currying first-class functions imperative-style pattern matching in traits scaling Serializable interface setAll method shared mutable data short-circuiting, 2^nd shortValueExact method side effects, 2^nd, 3^rd, 4^th singleton pattern SIZED characteristic, 2^nd skip method, 2^nd sort method, 2^nd SORTED characteristic sorted method, 2^nd sorting with Comparator source compatibility split method spliterator method stack trace defined lambdas and stateful operations stateless lambda expressions stateless operations static methods inside interfaces stdin/stdout strategy design pattern Stream interface groups of operations intermediate operations terminal operations stream method, 2^nd StreamForker structural pattern matching SUBSIZED characteristic, 2^nd substreams subtractExact method subtractFrom method sum method summarization using collectors summarizingInt method summingDouble method summingInt method, 2^nd summingLong method Supplier interface supplier method supplyAsync method synchronized keyword synchronous methods, converting to asynchronous syntactic metadata

T

tail-call optimization target type, 2^nd target-type inference template method design pattern Temporal interface TemporalAdjusters TemporalField, 2^nd terminal operations, 2^nd, 3^rd @Test annotation ThaiBuddhistDate class thenCombine method thenComparing method, 2^nd thenComparingDouble method thenComparingInt method thenComparingLong method thenCompose method thread pools threads TimeoutException toCollection method ToDoubleBiFunction interface ToDoubleFunction interface ToIntBiFunction interface toIntExact method ToIntFunction interface toList method, 2^nd ToLongBiFunction interface ToLongFunction interface toSet method, 2^nd toUnsignedInt method toUnsignedLong method toUnsignedString method traits in Scala TreeSet class troubleshooting parallel streams truncating streams tryAdvance method trySplit method, 2^nd tuples, Scala type annotations type checking type inference, 2^nd, 3^rd

U

UnaryOperator interface unbounded unboxing unit testing lambda expressions unmodifiable collections UnsupportedTemporalType-Exception unwrapping optionals updateAndGet method

V

value types values, streams from variables in lambda expressions visitor design pattern, 2^nd void return

W

walk method while loop with method withAttribute method work stealing technique

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