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Classes in the java.nio Package

• 1. java.nio.charset.Charset
   (3310)
  It has 17 commonly used methods.
• 2. java.nio.ByteBuffer
   (2904)
  It has 49 commonly used methods.
• 3. java.nio.file.Files
   (2803)
  It has 52 commonly used methods.
• 4. java.nio.charset.StandardCharsets
   (2699)
  It has 6 commonly used methods.
• 5. java.nio.file.Paths
   (2441)
  It has 1 commonly used methods.
• 6. java.nio.file.Path
   (2223)
  It has 28 commonly used methods.
• 7. java.nio.channels.FileChannel
   (1078)
  It has 16 commonly used methods.
• 8. java.nio.ByteOrder
   (1027)
  It has 5 commonly used methods.
• 9. java.nio.file.StandardCopyOption
   (622)
  It has 1 commonly used methods.
• 10. java.nio.file.attribute.BasicFileAttributes
   (591)
  It has 8 commonly used methods.
• 11. java.nio.file.FileSystems
   (540)
  It has 3 commonly used methods.
• 12. java.nio.CharBuffer
   (534)
  It has 25 commonly used methods.
• 13. java.nio.file.StandardOpenOption
   (505)
  It has 7 commonly used methods.
• 14. java.nio.channels.Channels
   (440)
  It has 5 commonly used methods.
• 15. java.nio.file.FileVisitResult
   (425)
  It has 4 commonly used methods.
• 16. java.nio.file.SimpleFileVisitor
   (385)
  It has 0 commonly used methods.
• 17. java.nio.channels.ReadableByteChannel
   (383)
  It has 3 commonly used methods.
• 18. java.nio.FloatBuffer
   (359)
  It has 16 commonly used methods.
• 19. java.nio.channels.SocketChannel
   (332)
  It has 22 commonly used methods.
• 20. java.nio.MappedByteBuffer
   (324)
  It has 23 commonly used methods.
• 21. java.nio.IntBuffer
   (302)
  It has 18 commonly used methods.
• 22. java.nio.charset.CharsetDecoder
   (268)
  It has 10 commonly used methods.
• 23. java.nio.file.DirectoryStream
   (260)
  It has 5 commonly used methods.
• 24. java.nio.file.FileSystem
   (258)
  It has 6 commonly used methods.
• 25. java.nio.charset.CharsetEncoder
   (251)
  It has 10 commonly used methods.
• 26. java.nio.channels.WritableByteChannel
   (246)
  It has 3 commonly used methods.
• 27. java.nio.channels.ClosedChannelException
   (243)
  It has 2 commonly used methods.
• 28. java.nio.channels.Selector
   (243)
  It has 8 commonly used methods.
• 29. java.nio.channels.FileLock
   (242)
  It has 6 commonly used methods.
• 30. java.nio.channels.SelectionKey
   (238)
  It has 17 commonly used methods.
• 31. java.nio.Buffer
   (231)
  It has 12 commonly used methods.
• 32. java.nio.charset.UnsupportedCharsetException
   (229)
  It has 2 commonly used methods.
• 33. java.nio.channels.ServerSocketChannel
   (226)
  It has 11 commonly used methods.
• 34. java.nio.charset.CharacterCodingException
   (217)
  It has 3 commonly used methods.
• 35. java.nio.file.NoSuchFileException
   (212)
  It has 1 commonly used methods.
• 36. java.nio.BufferUnderflowException
   (191)
  It has 4 commonly used methods.
• 37. java.nio.charset.CodingErrorAction
   (184)
  It has 2 commonly used methods.
• 38. java.nio.file.WatchService
   (179)
  It has 3 commonly used methods.
• 39. java.nio.BufferOverflowException
   (175)
  It has 4 commonly used methods.
• 40. java.nio.file.WatchKey
   (170)
  It has 4 commonly used methods.
• 41. java.nio.file.attribute.PosixFilePermission
   (169)
  It has 2 commonly used methods.
• 42. java.nio.file.WatchEvent
   (163)
  It has 4 commonly used methods.
• 43. java.nio.ShortBuffer
   (159)
  It has 15 commonly used methods.
• 44. java.nio.file.attribute.FileTime
   (155)
  It has 7 commonly used methods.
• 45. java.nio.charset.CoderResult
   (151)
  It has 12 commonly used methods.
• 46. java.nio.file.FileAlreadyExistsException
   (142)
  It has 0 commonly used methods.
• 47. java.nio.file.LinkOption
   (134)
  It has 1 commonly used methods.
• 48. java.nio.file.PathMatcher
   (129)
  It has 1 commonly used methods.
• 49. java.nio.charset.IllegalCharsetNameException
   (126)
  It has 1 commonly used methods.
• 50. java.nio.file.InvalidPathException
   (126)
  It has 1 commonly used methods.
• 51. java.nio.file.FileVisitOption
   (117)
  It has 0 commonly used methods.
• 52. java.nio.channels.FileChannel.MapMode
   (116)
  It has 1 commonly used methods.
• 53. java.nio.file.StandardWatchEventKinds
   (111)
  It has 4 commonly used methods.
• 54. java.nio.file.attribute.PosixFilePermissions
   (107)
  It has 3 commonly used methods.
• 55. java.nio.channels.DatagramChannel
   (103)
  It has 19 commonly used methods.
• 56. java.nio.channels.spi.SelectorProvider
   (97)
  It has 5 commonly used methods.
• 57. java.nio.file.attribute.FileAttribute
   (97)
  It has 0 commonly used methods.
• 58. java.nio.channels.SeekableByteChannel
   (96)
  It has 6 commonly used methods.
• 59. java.nio.file.FileVisitor
   (96)
  It has 1 commonly used methods.
• 60. java.nio.channels.ClosedByInterruptException
   (95)
  It has 0 commonly used methods.
• 61. java.nio.LongBuffer
   (93)
  It has 15 commonly used methods.
• 62. java.nio.channels.SelectableChannel
   (90)
  It has 7 commonly used methods.
• 63. java.nio.DoubleBuffer
   (89)
  It has 14 commonly used methods.
• 64. java.nio.file.OpenOption
   (89)
  It has 0 commonly used methods.
• 65. java.nio.channels.Channel
   (84)
  It has 2 commonly used methods.
• 66. java.nio.channels.CancelledKeyException
   (77)
  It has 0 commonly used methods.
• 67. java.nio.file.AccessDeniedException
   (76)
  It has 1 commonly used methods.
• 68. java.nio.channels.OverlappingFileLockException
   (72)
  It has 0 commonly used methods.
• 69. java.nio.channels.CompletionHandler
   (69)
  It has 2 commonly used methods.
• 70. java.nio.file.CopyOption
   (68)
  It has 0 commonly used methods.
• 71. java.nio.file.FileSystemNotFoundException
   (64)
  It has 0 commonly used methods.
• 72. java.nio.ReadOnlyBufferException
   (64)
  It has 0 commonly used methods.
• 73. java.nio.file.FileStore
   (63)
  It has 5 commonly used methods.
• 74. java.nio.file.spi.FileSystemProvider
   (55)
  It has 8 commonly used methods.
• 75. java.nio.file.attribute.PosixFileAttributeView
   (53)
  It has 2 commonly used methods.
• 76. java.nio.channels.AsynchronousSocketChannel
   (52)
  It has 9 commonly used methods.
• 77. java.nio.file.attribute.PosixFileAttributes
   (52)
  It has 4 commonly used methods.
• 78. java.nio.file.DirectoryNotEmptyException
   (52)
  It has 0 commonly used methods.
• 79. java.nio.file.attribute.BasicFileAttributeView
   (51)
  It has 2 commonly used methods.
• 80. java.nio.file.ClosedWatchServiceException
   (51)
  It has 0 commonly used methods.
• 81. java.nio.charset.MalformedInputException
   (49)
  It has 0 commonly used methods.
• 82. java.nio.file.attribute.UserPrincipal
   (48)
  It has 3 commonly used methods.
• 83. java.nio.file.attribute.UserPrincipalLookupService
   (48)
  It has 2 commonly used methods.
• 84. java.nio.file.FileSystemException
   (48)
  It has 4 commonly used methods.
• 85. java.nio.channels.ClosedSelectorException
   (47)
  It has 0 commonly used methods.
• 86. java.nio.channels.AsynchronousFileChannel
   (46)
  It has 5 commonly used methods.
• 87. java.nio.channels.UnresolvedAddressException
   (46)
  It has 1 commonly used methods.
• 88. java.nio.channels.AsynchronousCloseException
   (45)
  It has 0 commonly used methods.
• 89. java.nio.channels.NotYetConnectedException
   (43)
  It has 0 commonly used methods.
• 90. java.nio.channels.GatheringByteChannel
   (40)
  It has 1 commonly used methods.
• 91. java.nio.file.WatchEvent.Kind
   (40)
  It has 1 commonly used methods.
• 92. java.nio.file.attribute.FileAttributeView
   (36)
  It has 0 commonly used methods.
• 93. java.nio.channels.ScatteringByteChannel
   (35)
  It has 1 commonly used methods.
• 94. java.nio.channels.spi.AbstractSelectableChannel
   (35)
  It has 3 commonly used methods.
• 95. java.nio.channels.ByteChannel
   (34)
  It has 3 commonly used methods.
• 96. java.nio.file.AccessMode
   (34)
  It has 0 commonly used methods.
• 97. java.nio.file.DirectoryIteratorException
   (34)
  It has 1 commonly used methods.
• 98. java.nio.channels.AsynchronousChannelGroup
   (33)
  It has 4 commonly used methods.
• 99. java.nio.channels.AsynchronousServerSocketChannel
   (33)
  It has 5 commonly used methods.
• 100. java.nio.channels.NonWritableChannelException
   (33)
  It has 0 commonly used methods.
• 101. java.nio.file.FileSystemAlreadyExistsException
   (33)
  It has 0 commonly used methods.
• 102. java.nio.file.NotDirectoryException
   (33)
  It has 0 commonly used methods.
• 103. java.nio.channels.Pipe
   (31)
  It has 5 commonly used methods.
• 104. java.nio.file.attribute.FileOwnerAttributeView
   (30)
  It has 2 commonly used methods.
• 105. java.nio.file.DirectoryStream.Filter
   (30)
  It has 1 commonly used methods.
• 106. java.nio.file.AtomicMoveNotSupportedException
   (29)
  It has 0 commonly used methods.
• 107. java.nio.file.attribute.FileStoreAttributeView
   (29)
  It has 0 commonly used methods.
• 108. java.nio.file.attribute.DosFileAttributes
   (28)
  It has 1 commonly used methods.
• 109. java.nio.file.ProviderMismatchException
   (27)
  It has 0 commonly used methods.
• 110. java.nio.file.WatchEvent.Modifier
   (26)
  It has 0 commonly used methods.
• 111. java.nio.charset.UnmappableCharacterException
   (25)
  It has 0 commonly used methods.
• 112. java.nio.file.spi.FileTypeDetector
   (25)
  It has 1 commonly used methods.
• 113. java.nio.file.attribute.UserDefinedFileAttributeView
   (24)
  It has 5 commonly used methods.
• 114. java.nio.file.FileSystemLoopException
   (24)
  It has 0 commonly used methods.
• 115. java.nio.channels.spi.AbstractInterruptibleChannel
   (23)
  It has 0 commonly used methods.
• 116. java.nio.charset.spi.CharsetProvider
   (23)
  It has 1 commonly used methods.
• 117. java.nio.channels.AlreadyConnectedException
   (22)
  It has 0 commonly used methods.
• 118. java.nio.channels.spi.AsynchronousChannelProvider
   (22)
  It has 0 commonly used methods.
• 119. java.nio.channels.UnsupportedAddressTypeException
   (22)
  It has 0 commonly used methods.
• 120. java.nio.channels.FileLockInterruptionException
   (21)
  It has 0 commonly used methods.
• 121. java.nio.file.attribute.DosFileAttributeView
   (21)
  It has 0 commonly used methods.
• 122. java.nio.channels.NonReadableChannelException
   (20)
  It has 0 commonly used methods.
• 123. java.nio.channels.ConnectionPendingException
   (18)
  It has 0 commonly used methods.
• 124. java.nio.file.ClosedDirectoryStreamException
   (18)
  It has 0 commonly used methods.
• 125. java.nio.file.ProviderNotFoundException
   (18)
  It has 0 commonly used methods.
• 126. java.nio.channels.AlreadyBoundException
   (17)
  It has 0 commonly used methods.
• 127. java.nio.channels.NotYetBoundException
   (17)
  It has 0 commonly used methods.
• 128. java.nio.file.attribute.AclFileAttributeView
   (17)
  It has 2 commonly used methods.
• 129. java.nio.file.attribute.GroupPrincipal
   (17)
  It has 1 commonly used methods.
• 130. java.nio.file.FileTreeWalker.Event
   (17)
  It has 0 commonly used methods.
• 131. java.nio.channels.NoConnectionPendingException
   (16)
  It has 0 commonly used methods.
• 132. java.nio.channels.spi.AbstractSelector
   (16)
  It has 0 commonly used methods.
• 133. java.nio.file.attribute.AclEntry
   (15)
  It has 1 commonly used methods.
• 134. java.nio.file.attribute.AclEntryPermission
   (13)
  It has 0 commonly used methods.
• 135. java.nio.channels.IllegalBlockingModeException
   (12)
  It has 0 commonly used methods.
• 136. java.nio.file.attribute.AclEntryType
   (12)
  It has 1 commonly used methods.
• 137. java.nio.channels.IllegalSelectorException
   (11)
  It has 0 commonly used methods.
• 138. java.nio.InvalidMarkException
   (11)
  It has 0 commonly used methods.
• 139. java.nio.charset.CoderMalfunctionError
   (10)
  It has 1 commonly used methods.
• 140. java.nio.channels.NetworkChannel
   (9)
  It has 1 commonly used methods.
• 141. java.nio.file.ClosedFileSystemException
   (9)
  It has 0 commonly used methods.
• 142. java.nio.channels.AsynchronousByteChannel
   (8)
  It has 0 commonly used methods.
• 143. java.nio.channels.WritePendingException
   (8)
  It has 0 commonly used methods.
• 144. java.nio.file.Watchable
   (8)
  It has 1 commonly used methods.
• 145. java.nio.channels.ReadPendingException
   (7)
  It has 0 commonly used methods.
• 146. java.nio.channels.AsynchronousChannel
   (6)
  It has 0 commonly used methods.
• 147. java.nio.channels.MembershipKey
   (6)
  It has 2 commonly used methods.
• 148. java.nio.file.NotLinkException
   (6)
  It has 0 commonly used methods.
• 149. java.nio.channels.InterruptedByTimeoutException
   (5)
  It has 0 commonly used methods.
• 150. java.nio.channels.ShutdownChannelGroupException
   (5)
  It has 0 commonly used methods.
• 151. java.nio.file.attribute.UserPrincipalNotFoundException
   (5)
  It has 0 commonly used methods.
• 152. java.nio.channels.InterruptibleChannel
   (4)
  It has 0 commonly used methods.
• 153. java.nio.channels.spi.AbstractSelectionKey
   (3)
  It has 0 commonly used methods.
• 154. java.nio.file.LinkPermission
   (3)
  It has 0 commonly used methods.
• 155. java.nio.file.ReadOnlyFileSystemException
   (3)
  It has 0 commonly used methods.