Classes in the java.io Package

1. java.io.IOException

(13075)

It has 13 commonly used methods.
2. java.io.File

(9500)

It has 60 commonly used methods.
3. java.io.InputStream

(8161)

It has 15 commonly used methods.
4. java.io.InputStreamReader

(5330)

It has 5 commonly used methods.
5. java.io.BufferedReader

(5315)

It has 11 commonly used methods.
6. java.io.FileInputStream

(5196)

It has 6 commonly used methods.
7. java.io.Serializable

(5075)

It has 4 commonly used methods.
8. java.io.FileOutputStream

(5047)

It has 5 commonly used methods.
9. java.io.OutputStream

(4658)

It has 10 commonly used methods.
10. java.io.ByteArrayOutputStream

(4649)

It has 8 commonly used methods.
11. java.io.FileNotFoundException

(4175)

It has 4 commonly used methods.
12. java.io.UnsupportedEncodingException

(3757)

It has 6 commonly used methods.
13. java.io.ByteArrayInputStream

(3725)

It has 8 commonly used methods.
14. java.io.PrintWriter

(3253)

It has 9 commonly used methods.
15. java.io.StringWriter

(2636)

It has 6 commonly used methods.
16. java.io.FileReader

(2313)

It has 2 commonly used methods.
17. java.io.FileWriter

(2224)

It has 4 commonly used methods.
18. java.io.OutputStreamWriter

(2108)

It has 5 commonly used methods.
19. java.io.Reader

(2084)

It has 11 commonly used methods.
20. java.io.BufferedWriter

(2071)

It has 6 commonly used methods.
21. java.io.Writer

(2026)

It has 6 commonly used methods.
22. java.io.BufferedInputStream

(2021)

It has 6 commonly used methods.
23. java.io.Closeable

(1953)

It has 2 commonly used methods.
24. java.io.StringReader

(1905)

It has 6 commonly used methods.
25. java.io.PrintStream

(1707)

It has 10 commonly used methods.
26. java.io.BufferedOutputStream

(1586)

It has 3 commonly used methods.
27. java.io.ObjectInputStream

(1538)

It has 18 commonly used methods.
28. java.io.ObjectOutputStream

(1514)

It has 21 commonly used methods.
29. java.io.DataOutputStream

(1299)

It has 15 commonly used methods.
30. java.io.DataInputStream

(1087)

It has 21 commonly used methods.
31. java.io.RandomAccessFile

(1031)

It has 28 commonly used methods.
32. java.io.EOFException

(875)

It has 3 commonly used methods.
33. java.io.FilenameFilter

(836)

It has 1 commonly used methods.
34. java.io.FileFilter

(720)

It has 1 commonly used methods.
35. java.io.DataInput

(422)

It has 14 commonly used methods.
36. java.io.DataOutput

(404)

It has 12 commonly used methods.
37. java.io.FilterInputStream

(394)

It has 2 commonly used methods.
38. java.io.FileDescriptor

(380)

It has 7 commonly used methods.
39. java.io.FilterOutputStream

(351)

It has 2 commonly used methods.
40. java.io.UncheckedIOException

(325)

It has 1 commonly used methods.
41. java.io.InterruptedIOException

(315)

It has 2 commonly used methods.
42. java.io.ObjectOutput

(272)

It has 14 commonly used methods.
43. java.io.LineNumberReader

(264)

It has 9 commonly used methods.
44. java.io.ObjectInput

(251)

It has 17 commonly used methods.
45. java.io.PipedOutputStream

(216)

It has 4 commonly used methods.
46. java.io.PipedInputStream

(214)

It has 3 commonly used methods.
47. java.io.CharArrayWriter

(177)

It has 8 commonly used methods.
48. java.io.Externalizable

(176)

It has 2 commonly used methods.
49. java.io.ObjectStreamException

(174)

It has 0 commonly used methods.
50. java.io.PushbackInputStream

(169)

It has 4 commonly used methods.
51. java.io.ObjectStreamClass

(158)

It has 9 commonly used methods.
52. java.io.Flushable

(146)

It has 1 commonly used methods.
53. java.io.InvalidObjectException

(128)

It has 1 commonly used methods.
54. java.io.NotSerializableException

(127)

It has 2 commonly used methods.
55. java.io.Console

(122)

It has 5 commonly used methods.
56. java.io.StreamTokenizer

(109)

It has 20 commonly used methods.
57. java.io.StreamCorruptedException

(102)

It has 1 commonly used methods.
58. java.io.SequenceInputStream

(100)

It has 1 commonly used methods.
59. java.io.CharArrayReader

(92)

It has 2 commonly used methods.
60. java.io.InvalidClassException

(85)

It has 2 commonly used methods.
61. java.io.IOError

(82)

It has 1 commonly used methods.
62. java.io.UTFDataFormatException

(81)

It has 1 commonly used methods.
63. java.io.FilterWriter

(54)

It has 0 commonly used methods.
64. java.io.FilterReader

(48)

It has 0 commonly used methods.
65. java.io.FilePermission

(47)

It has 2 commonly used methods.
66. java.io.CharConversionException

(45)

It has 1 commonly used methods.
67. java.io.StringBufferInputStream

(43)

It has 0 commonly used methods.
68. java.io.PushbackReader

(42)

It has 3 commonly used methods.
69. java.io.ObjectStreamField

(39)

It has 0 commonly used methods.
70. java.io.OptionalDataException

(37)

It has 0 commonly used methods.
71. java.io.ObjectInputStream.GetField

(29)

It has 3 commonly used methods.
72. java.io.ObjectStreamConstants

(29)

It has 4 commonly used methods.
73. java.io.ObjectInputValidation

(24)

It has 0 commonly used methods.
74. java.io.WriteAbortedException

(22)

It has 1 commonly used methods.
75. java.io.ObjectOutputStream.PutField

(22)

It has 1 commonly used methods.
76. java.io.SyncFailedException

(22)

It has 0 commonly used methods.
77. java.io.SerializablePermission

(20)

It has 0 commonly used methods.
78. java.io.PipedWriter

(18)

It has 2 commonly used methods.
79. java.io.ObjectStreamClass.WeakClassKey

(18)

It has 0 commonly used methods.
80. java.io.NotActiveException

(18)

It has 0 commonly used methods.
81. java.io.PipedReader

(18)

It has 1 commonly used methods.
82. java.io.SerialCallbackContext

(16)

It has 2 commonly used methods.
83. java.io.LineNumberInputStream

(15)

It has 0 commonly used methods.
84. java.io.Fil[...]

(7)

It has 0 commonly used methods.
85. java.io.ObjectInputFilter

(4)

It has 3 commonly used methods.