Files and Filename Filters
In all of the examples thus far, a string has been used to refer to the file that's involved in a stream operation. This often is sufficient for a program that uses files and streams, but if you want to copy files, rename files, or handle other tasks, a File object can be used.
File, which also is part of the java.io package, represents a file or folder reference. The following File constructors can be used:
File(String)—Creates a File object with the specified folder—no filename is indicated, so this refers only to a file folder.
File(String, String)—Creates a File object with the specified folder path and the specified name.
File(File, String)—Creates a File object with its path represented by the specified File and ...
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