![]() Declaration: Following is the declaration for java.io.File.renameTo(File dest) method: public boolean renameTo(File dest) Parameters: dest The new abstract pathname for the existing abstract pathname. In this case, it would be better to throw an unchecked exception instead, so you don't need to handle the exception manually. In Java we can rename a file using renameTo(newName) method that belongs to the File class. And if you prefer sticking with your keyboard, you can just use your arrow keys (or start typing the file name) to select a file and then hit F2 to select the file name. Simply this program first reads the file or directory name which has to be renamed and then check whether the specified file or directory exists or not. Right-click the file and then select Rename on the context menu. You don't want your method to throw a checked exception. Click to select file and then click the name of the selected file. To do this, you should wrap the method that throws the Exception (or subclass) in a try-catch statement: String new_name = getFilename(file) You don't know how to handle checked exceptions. Code adapted from Rename a file using Java: public static void renameFile(File toBeRenamed, String new_name)įile fileWithNewName = new File(toBeRenamed.getParent(), new_name) īoolean success = toBeRenamed.renameTo(fileWithNewName) ĮDIT: Based on your question update and on this comment: Creating a new instance of File class doesn't mean you are creating a physical file.īy knowing this, you can rename your file using a new File without worrying about creating new physical files. Many aspects of the behavior of this method are inherently platform-dependent: The rename operation might not be able to move a file from one filesystem to another, it might not be atomic, and it might not succeed if a file with the destination abstract pathname already exists. The File class contains several methods for working with the pathname, deleting and renaming files, creating new directories, listing the. Because file and directory names have different formats on different platforms, a simple string is not adequate to name them. The File class doesn't represent the physic file in the hard drive, it is just an abstract representation. Java's File.renameTo() is problematic, especially on Windows, it seems. The File class is Java’s representation of a file or directory pathname.
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