Java came with several I/O classes to support input and output across streams and the filesystem. The following is a list of Java I/O examples including file manipulation, encoding, serialization, and compression with zip and Gzip.

The files

• Create a file
• Build a file path
• Change a file's permission
• Read a file with BufferedInputStream
• Read a file with BufferedReader
• Write to a file with FileOutputStream
• Write to a file with BufferedWriter
• Concatenating content to a file
• Delete a file
• Delete files with a certain extension
• Find files with certain extensions
• Rename files with a certain extension
• Copy a file
• Move a file to another repository
• Get the date a file was created
• Get the last modified date of a file
• Change the last modified date of a file
•  Make a file a reader-only
• Get the size of a file
• Get File Path
• Get the number of lines in a file
• Check if a file exists
• Check if a file is hidden
• Read UTF-8 encoded data from a
• Write UTF-8 encoded data to a file
• Convert a file to an array of bytes
• Convert an array of bytes to a file
• Convert a String to an InputStream
• Convert an InputStream to a String
• Convert a file to a Hex
• Get the total space of your partition