true if and only if the file denoted by this abstract pathname exists and is a directory; false otherwise Throws: SecurityException - If a security manager exists and its SecurityManager.checkRead(java.lang.String) method denies read access to the file isFile public boolean isFile() Tests wheth...
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited fromObject) Methods 展开表 Clone() Creates and returns a copy of this object. (Inherited fromObject) Copy(IPath, IPath, ICopyOption[]) ...
If the specified file exists, the function succeeds and the last-error code is set toERROR_ALREADY_EXISTS(183). If the specified file does not exist and is a valid path to a writable location, the function creates a file and the last-error code is set to zero. ...
File file =newFile("c:\\newfile.txt");//创建文件使用createNewFile()方法if(file.createNewFile()){ System.out.println("File is created!"); }else{ System.out.println("File already exists."); } }catch(IOException e) { e.printStackTrace(); } } } 1 2 3 4 5 6 7 8 9 10 11 12 ...
A classic example is the case where an application writes temporary files to publicly accessible directories. You can set the file permissions of the temporary file to prevent another user from altering the file. However, if the file already exists before you write to it, you could be overwrit...
86There was an error opening the installation log file. Verify that the specified log file location exists and that it is writable. 97This installation package is not supported on this platform. 102Another version of this product is already installed. Installation of this version cannot continue....
isWritable(string $path) Determine if the given path is writable. bool isFile(string $file) Determine if the given path is a file. array glob(string $pattern, int $flags = 0) Find path names matching a given pattern. SplFileInfo[] files(string $directory, bool $hidden = false...
A property is writable if: the class has a setter method associated with the specified name (in this case, property name is case-insensitive); the class has a member variable with the specified name (when$checkVarsis true); See alsocanGetProperty(). ...
File::write(): See also File::isWritable. File::end(): See WritableStream::end(). File::close(): Close the file handle. File::isClosed() can be used to check if the file handle has already been closed. File::onClose() can be used ot register a callback that's called on file...
Even ifReplaceIfExistsis set to TRUE, the rename operation will still fail if a file with the same name already exists and is a directory, a read-only file, or a currently executing file. A volume's files and directories cannot be renamed if the volume is a read-only volume, such as...