| 分级 | 阅读完成度 | 含义 |
|---|---|---|
| 1 | 🌕 | 完成阅读，方法/字段已读完，实现过程已了解 |
| 2 | 🌔 | 完成阅读，方法/字段已读完，但一些实现细节未掌握 |
| 3 | 🌓 | 正在阅读，方法/字段未读完，理解了大部分特性 |
| 4 | 🌒 | 正在阅读，方法/字段未读完，只涉猎了一部分特性 |
| 5 | 🌑 | 初步接触，有限的了解，大概知道该类的作用 |
- 数值计算
- 🌔 BigInteger
- 🌓 BigDecimal
- 🌔 Math
- 🌔 StrictMath
- 🌔 RoundingMode
- 🌔 MathContext
- 🌕 FloatConsts
- 🌕 DoubleConsts
- 随机数
- 迭代
- 常见字节输入流
- 🌔 InputStream
- 🌔 StringBufferInputStream
- 🌔 ByteArrayInputStream
- 🌔 FileInputStream
- 🌔 SocketInputStream
- 🌔 ChannelInputStream
- 🌔 PipedInputStream
- 🌔 SequenceInputStream
- 🌔 FilterInputStream
- 🌔 BufferedInputStream
- 🌔 LineNumberInputStream
- 🌔 PushbackInputStream
- 🌔 DataInput
- 🌔 DataInputStream
- 🌔 ObjectInput
- 🌔 ObjectInputStream
- 🌔 CheckedInputStream
- 🌔 DeflaterInputStream
- 🌔 InflaterInputStream
- 🌔 GZIPInputStream
- 🌔 ZipInputStream
- 🌔 JarInputStream
- 常见字节输出流
- 🌔 OutputStream
- 🌔 ByteArrayOutputStream
- 🌔 FileOutputStream
- 🌔 SocketOutputStream
- 🌔 PipedOutputStream
- 🌔 FilterOutputStream
- 🌔 PrintStream
- 🌔 BufferedOutputStream
- 🌔 DataOutput
- 🌔 DataOutputStream
- 🌔 ObjectOutput
- 🌔 ObjectOutputStream
- 🌔 CheckedOutputStream
- 🌔 InflaterOutputStream
- 🌔 DeflaterOutputStream
- 🌔 GZIPOutputStream
- 🌔 ZipOutputStream
- 🌔 JarOutputStream
- 常见字符输入流
- 常见字符输出流
- 序列化/反序列化
- 压缩/解压
- 引用
- 清理器
- 🌕 Cleaner (java.lang.ref)
- 🌕 Cleaner (jdk.internal.ref)
- 🌕 CleanerImpl
- 🌕 PhantomCleanable
- 🌕 SoftCleanable
- 🌕 WeakCleanable
- 🌕 CleanerFactory
- 字符序列
- 字符(序列)编码/解码
- 字符集
- 🌔 Charset
- 🌕 StandardCharsets (java.nio.charset)
- 🌔 StandardCharsets (sun.nio.cs)
- 🌔 ExtendedCharsets
- 🌕 CharsetProvider
- 🌕 AbstractCharsetProvider
- 🌔 CharacterData
- 🌕 CharacterDataLatin1
- 🌔 ConditionalSpecialCasing
- 文件操作选项
- 目录监视服务
- 目录流
- 文件树访问
- 文件过滤
- 文件属性
- 文件属性视图
- 🌕 DynamicFileAttributeView
- 🌕 AttributeView
- 🌕 UserDefinedFileAttributeView
- 🌕 AbstractUserDefinedFileAttributeView
- 🌕 WindowsUserDefinedFileAttributeView
- 🌕 FileAttributeView
- 🌕 FileOwnerAttributeView
- 🌕 FileOwnerAttributeViewImpl
- 🌕 PosixFileAttributeView
- 🌕 AclFileAttributeView
- 🌕 AbstractAclFileAttributeView
- 🌕 WindowsAclFileAttributeView
- 🌕 BasicFileAttributeView
- 🌕 AbstractBasicFileAttributeView
- 🌕 DosFileAttributeView
- 🌕 WindowsFileAttributeViews
- 🌕 FileStoreAttributeView
- 🌓 AclEntry
- 🌕 AclEntryType
- 🌕 AclEntryPermission
- 🌕 AclEntryFlag
- 🌔 UserPrincipal
- 🌔 GroupPrincipal
- 🌔 UserPrincipalLookupService
- 文件系统提供器
- 文件系统
- 🌕 FileSystems
- 🌕 FileSystem (java.io)
- 🌕 WinNTFileSystem
- 🌕 DefaultFileSystem
- 🌕 FileSystem (java.nio.file)
- 🌕 WindowsFileSystem
- 文件类型探测
- 文件工具
- 🌕 Files
- 🌔 FileChannelLinesSpliterator
- 🌕 FileAttribute
- 🌕 AccessMode
- 🌕 FileTime
- 🌕 Util
- 🌕 NativeBuffer
- 🌕 NativeBuffers
- 🌕 WindowsConstants
- 🌓 WindowsNativeDispatcher
- 🌕 TempFileHelper
- 🌕 WindowsLinkSupport
- 🌕 WindowsFileCopy
- 🌕 Cancellable (sun.nio.fs)
- 🌕 CopyMoveHelper
- 🌓 WindowsSecurityDescriptor
- 🌓 WindowsUserPrincipals
- 🌕 DeleteOnExitHook
- 文件
- 🌕 File
- 🌕 RandomAccessFile
- 文件存储
- 路径
- 🌕 Paths
- 🌕 Path
- 🌔 WindowsPath
- 🌔 WindowsPathParser
- 🌕 WindowsPathType
- 网络-地址
- 网络-TCP
- 网络-UDP
- 网络-代理
- 网络-工具
- 网络-参数
- 🌕 SocketOption
- 🌕 SocketOptions
- 🌕 ExtendedSocketOption
- 🌕 StandardSocketOptions
- 🌑 ExtendedSocketOptions (sun.net.ext)
- 🌑 ExtendedSocketOptions (jdk.net)
- 🌔 SocksConsts
- 网络-认证
- 通道-工厂
- 通道-分类
- 🌕 Channel
- 🌕 ReadableByteChannel
- 🌕 WritableByteChannel
- 🌕 ByteChannel
- 🌕 SeekableByteChannel
- 🌕 NetworkChannel
- 🌕 MulticastChannel
- 🌕 SelChImpl
- 🌕 ScatteringByteChannel
- 🌕 GatheringByteChannel
- 🌕 InterruptibleChannel
- 🌕 AbstractInterruptibleChannel
- 🌕 SelectableChannel
- 🌕 AbstractSelectableChannel
- 🌕 AsynchronousChannel
- 🌕 AsynchronousByteChannel
- 🌕 Groupable
- 🌕 Cancellable (sun.nio.ch)
- 通道-分派器
- 通道-工具
- 🌕 Channels
- 🌓 IOStatus
- 🌔 Net
- 🌔 Util
- 🌕 NativeThread
- 🌕 NativeThreadSet
- 通道-工具-同步
- 通道-文件-文件锁
- 🌔 FileLock
- 🌔 FileLockImpl
- 🌔 FileLockTable
- 🌕 FileKey
- 通道-文件-同步
- 通道-TCP-同步
- 通道-UDP-同步
- 通道-Socket适配器-同步
- 通道-工具-异步
- 通道-通道组-异步
- 通道-文件-异步
- 通道-TCP-异步
- 通道选择器
- 通道选择器-管道
- 🌕 Pipe
- 🌕 PipeImpl
- 🌕 SinkChannelImpl
- 🌕 SourceChannelImpl
- 通道选择器-工厂
- 通道选择器-工具
- 通道选择器-选择键
- URL
- 🌔 URL
- 🌔 URLEncoder
- 🌔 URLDecoder
- URL-连接
- 🌔 URLConnection (java.net)
- 🌔 URLConnection (sun.net.www)
- 🌔 FileURLConnection
- URL-协议处理
- 消息头
- 🌕 FileNameMap
- 🌕 MessageHeader
- 🌕 MimeEntry
- 🌕 MimeLauncher
- 🌕 MimeTable
- URI
- 🌔 URI
- 🌔 WindowsUriSupport
- 类加载器
- 反射元素访问器
- 🌓 MethodAccessorGenerator
- 🌔 ConstructorAccessor
- 🌔 ConstructorAccessorImpl
- 🌔 DelegatingConstructorAccessorImpl
- 🌔 NativeConstructorAccessorImpl
- 🌔 SerializationConstructorAccessorImpl
- 🌔 InstantiationExceptionConstructorAccessorImpl
- 🌔 BootstrapConstructorAccessorImpl
- 🌔 MethodAccessor
- 🌔 MethodAccessorImpl
- 🌔 DelegatingMethodAccessorImpl
- 🌔 NativeMethodAccessorImpl
- 🌔 FieldAccessor
- 反射元素-杂项
- 反射元素-模块
- 反射元素-包
- 🌓 Package
- 🌔 NamedPackage
- 反射元素-字段
- 🌓 Field
- 反射元素-构造器
- 反射元素-方法
- 🌓 Method
- 反射元素-形参
- 反射元素-泛型
- 反射元素-注解
- 元注解
- 🌕 Annotation
- 🌕 RetentionPolicy
- 🌕 ElementType
- 🌕 Documented
- 🌕 Retention
- 🌕 Target
- 🌕 Inherited
- 🌕 Repeatable
- 🌕 Native
- 文件
- 比较
- 线程
- 原子操作
- 🌔 AtomicBoolean
- 🌔 AtomicInteger
- 🌔 AtomicLong
- 🌔 AtomicReference
- 🌔 AtomicIntegerArray
- 🌔 AtomicLongArray
- 🌔 AtomicReferenceArray
- 🌔 AtomicIntegerFieldUpdater
- 🌔 AtomicLongFieldUpdater
- 🌔 AtomicReferenceFieldUpdater
- 🌔 AtomicMarkableReference
- 🌔 AtomicStampedReference
- 🌔 Striped64
- 🌔 LongAdder
- 🌔 LongAccumulator
- 🌔 DoubleAdder
- 🌔 DoubleAccumulator
- 锁
- 同步/并发
- 🌔 CountDownLatch
- 🌔 CyclicBarrier
- 🌔 Semaphore
- 🌔 Executor
- 🌔 ExecutorService
- 🌔 ScheduledExecutorService
- 🌔 AbstractExecutorService
- 🌔 ForkJoinPool
- 🌔 ThreadPoolExecutor
- 🌔 ScheduledThreadPoolExecutor
- 🌔 Callable
- 🌔 Future
- 🌔 ForkJoinTask
- 🌔 RecursiveTask
- 🌔 RecursiveAction
- 🌔 CountedCompleter
- 🌔 ForkJoinWorkerThread
- 🌔 Delayed
- 🌔 ScheduledFuture
- 🌔 RunnableFuture
- 🌔 RunnableScheduledFuture
- 🌔 FutureTask
- 🌔 RejectedExecutionHandler
- 🌔 Executors
- 🌔 CompletionService
- 🌔 ExecutorCompletionService
- 🌔 Exchanger
- 🌔 Phaser
- 🌔 Flow
- 🌔 SubmissionPublisher
- 🌔 CompletionStage
- 🌔 CompletableFuture
- 容器/集合框架
- 🌕 Collection
- 🌕 AbstractCollection
- 🌔 Collections
- 🌕 RandomAccess
- 🌔 ImmutableCollections
- 🌑 CollSer
- 🌕 List
- 🌕 AbstractList
- 🌕 AbstractSequentialList
- 🌕 ArrayList
- 🌕 LinkedList
- 🌕 Vector
- 🌕 CopyOnWriteArrayList
- 🌕 ListIterator
- 🌕 Queue
- 🌕 Deque
- 🌕 BlockingQueue
- 🌕 BlockingDeque
- 🌕 TransferQueue
- 🌕 AbstractQueue
- 🌕 ArrayDeque
- 🌕 PriorityQueue
- 🌕 DelayQueue
- 🌕 ArrayBlockingQueue
- 🌕 LinkedBlockingQueue
- 🌕 LinkedBlockingDeque
- 🌕 PriorityBlockingQueue
- 🌔 SynchronousQueue
- 🌔 LinkedTransferQueue
- 🌔 ConcurrentLinkedQueue
- 🌔 ConcurrentLinkedDeque
- 🌕 Set
- 🌕 SortedSet
- 🌕 NavigableSet
- 🌕 AbstractSet
- 🌔 HashSet
- 🌔 LinkedHashSet
- 🌔 TreeSet
- 🌕 EnumSet
- 🌔 RegularEnumSet
- 🌔 JumboEnumSet
- 🌕 CopyOnWriteArraySet
- 🌔 ConcurrentSkipListSet
- 🌕 Map
- 🌕 SortedMap
- 🌕 NavigableMap
- 🌕 ConcurrentMap
- 🌕 ConcurrentNavigableMap
- 🌕 AbstractMap
- 🌔 HashMap
- 🌔 LinkedHashMap
- 🌔 TreeMap
- 🌕 IdentityHashMap
- 🌕 WeakHashMap
- 🌕 EnumMap
- 🌕 Dictionary
- 🌕 Hashtable
- 🌔 ConcurrentHashMap
- 🌔 ConcurrentSkipListMap
- 🌕 KeyValueHolder
- 🌕 PreHashedMap
- 🌕 BitSet
- 日期时间
- 日期时间-工具
- 日期时间-时区
- 🌕 ZoneId
- 🌕 ZoneOffset
- 🌕 ZoneRegion
- 🌔 ZoneRules
- 日期时间-历法系统
- 日期时间-时间段
- 🌕 ChronoPeriod
- 🌕 ChronoPeriodImpl
- 🌕 Period
- 🌕 Duration
- 日期时间-时间戳
- 🌕 Instant
- 日期时间-时钟
- 🌕 Clock
- 流
- 流迭代器
- 水槽
- 🌕 Sink
- 🌕 TerminalSink
- 流-终端容器
- 🌕 Node
- 🌕 Nodes
- 🌕 AbstractSpinedBuffer
- 🌕 SpinedBuffer
- 流-操作
- 🌕 DistinctOps
- 🌕 SliceOps
- 🌕 SortedOps
- 🌕 WhileOps
- 🌕 TerminalOp
- 🌕 ForEachOps
- 🌕 FindOps
- 🌕 MatchOps
- 🌕 ReduceOps
- 🌕 Collector
- 🌕 Collectors
- 流-工具
- 流-参数
- 单元素容器
- 缓冲区
- 🌕 Buffer
- 🌕 DirectBuffer
- char缓冲区
- byte缓冲区
- short缓冲区
- int缓冲区
- long缓冲区
- float缓冲区
- double缓冲区
- 缓冲区-工具
- 🌕 CharBufferSpliterator
- 🌔 Bits (java.nio)
- Lambda表达式
- 🌕 Function
- 🌕 IntFunction
- 🌕 LongFunction
- 🌕 DoubleFunction
- 🌕 IntToLongFunction
- 🌕 IntToDoubleFunction
- 🌕 LongToIntFunction
- 🌕 LongToDoubleFunction
- 🌕 DoubleToIntFunction
- 🌕 DoubleToLongFunction
- 🌕 ToIntFunction
- 🌕 ToLongFunction
- 🌕 ToDoubleFunction
- 🌕 BiFunction
- 🌕 ToIntBiFunction
- 🌕 ToLongBiFunction
- 🌕 ToDoubleBiFunction
- 🌕 UnaryOperator
- 🌕 IntUnaryOperator
- 🌕 LongUnaryOperator
- 🌕 DoubleUnaryOperator
- 🌕 BinaryOperator
- 🌕 IntBinaryOperator
- 🌕 LongBinaryOperator
- 🌕 DoubleBinaryOperator
- 🌕 Consumer
- 🌕 Predicate
- 🌕 Supplier
- 🌕 Function
- 注解处理器
- Java语言模型
- 🌔 AnnotatedConstruct
- 🌔 SourceVersion
- 类型
- 🌔 TypeMirror
- 🌔 NoType
- 🌔 WildcardType
- 🌔 UnionType
- 🌔 PrimitiveType
- 🌔 ExecutableType
- 🌔 IntersectionType
- 🌔 ReferenceType
- 🌔 TypeVariable
- 🌔 ArrayType
- 🌔 DeclaredType
- 🌔 NullType
- 🌔 ErrorType
- 🌔 TypeKind
- 🌔 Types
- 元素
- 访问器
- 🌔 TypeVisitor
- 🌔 AbstractTypeVisitor6
- 🌔 AbstractTypeVisitor7
- 🌔 AbstractTypeVisitor8
- 🌔 AbstractTypeVisitor9
- 🌔 SimpleTypeVisitor6
- 🌔 SimpleTypeVisitor7
- 🌔 SimpleTypeVisitor8
- 🌔 SimpleTypeVisitor9
- 🌔 TypeKindVisitor6
- 🌔 TypeKindVisitor7
- 🌔 TypeKindVisitor8
- 🌔 TypeKindVisitor9
- 🌔 ElementVisitor
- 🌔 AbstractElementVisitor6
- 🌔 AbstractElementVisitor7
- 🌔 AbstractElementVisitor8
- 🌔 AbstractElementVisitor9
- 🌔 SimpleElementVisitor6
- 🌔 SimpleElementVisitor7
- 🌔 SimpleElementVisitor8
- 🌔 SimpleElementVisitor9
- 🌔 ElementKindVisitor6
- 🌔 ElementKindVisitor7
- 🌔 ElementKindVisitor8
- 🌔 ElementKindVisitor9
- 🌔 ElementScanner6
- 🌔 ElementScanner7
- 🌔 ElementScanner8
- 🌔 ElementScanner9
- 🌔 AnnotationValueVisitor
- 🌔 AbstractAnnotationValueVisitor6
- 🌔 AbstractAnnotationValueVisitor7
- 🌔 AbstractAnnotationValueVisitor8
- 🌔 AbstractAnnotationValueVisitor9
- 🌔 SimpleAnnotationValueVisitor6
- 🌔 SimpleAnnotationValueVisitor7
- 🌔 SimpleAnnotationValueVisitor8
- 🌔 SimpleAnnotationValueVisitor9
- 定时器
- 🌕 Timer
- 🌕 TimerTask
- 🌕 TimerThread
- 🌕 TaskQueue
- 进程
- 服务
- 资源
- 动态代理
- 时间日期
- 🌕 TimeUnit
- 正则
- 🌓 Pattern
- 🌓 Matcher
- 🌓 MatchResult
- 异常体系
- 🌓 Throwable
- 🌔 Error
- 🌔 Exception
- 🌔 RuntimeException
- 不常用工具
- 🌔 Bits (java.io)
- 🌔 Preconditions
- 🌔 Tripwire (java.util)
- 🌔 Tripwire (java.util.stream)
- 🌔 Resources
- 🌕 WeakPairMap
- 🌔 Reflection
- 🌔 ReflectUtil
- 🌔 Shutdown
- 🌔 ApplicationShutdownHooks
- 未分类
- 🌔 SharedSecrets
- 🌓 StackTraceElement
- 🌕 StaticProperty
- 🌓 VersionProps
- 🌓 VM
- 🌕 Flushable
- 🌕 Closeable
- 🌕 AutoCloseable
- 🌕 Cloneable