Java Android Delete files and folders function __ function

/**
* Delete individual files
* @param the filename of the deleted file FilePath
* @return File deletion successfully returns TRUE, otherwise returns false
*/
public boolean DeleteFile (String filePath) {
File File = new file (FilePath);
if (File.isfile () && file.exists ()) {
return File.delete ();
}
return false;
}

/**
* Delete folders and files in the directory
* @param filePath The file path of the deleted directory
* @return Directory deletion successfully returns TRUE, otherwise returns false
*/
public boolean deletedirectory (String filePath) {
Boolean flag = false;
If FilePath does not end with a file delimiter, the file separator is automatically added
if (!filepath.endswith (File.separator)) {
FilePath = FilePath + file.separator;
}
File Dirfile = new file (FilePath);
if (!dirfile.exists () | |!dirfile.isdirectory ()) {
return false;
}
Flag = true;
file[] files = dirfile.listfiles ();
Traverse all files under the Delete folder (including subdirectories)
for (int i = 0; i < files.length; i++) {
if (Files[i].isfile ()) {
Delete a child file
Flag = DeleteFile (Files[i].getabsolutepath ());
if (!flag) break;
} else {
Deleting subdirectories
Flag = DeleteDirectory (Files[i].getabsolutepath ());
if (!flag) break;
}
}
if (!flag) return false;
Deletes the current empty directory
return Dirfile.delete ();
}

/**
* Deletes the specified directory or file according to the path, whether it exists or not
* @param filePath the directory or file to be deleted
* @return Delete succeeds returns True, otherwise returns false.
*/
public boolean DeleteFolder (String filePath) {
File File = new file (FilePath);
if (!file.exists ()) {
return false;
} else {
if (File.isfile ()) {
Call Delete File method for file
return DeleteFile (FilePath);
} else {
Call Delete directory method for directory
return DeleteDirectory (FilePath);
}
}
}