JAVA功能代码《10》----Java获得目录列表

10.Java获得目录列表

File dir = new File("directoryName");

		String[] children = dir.list();
		if (children == null) {
			// Either dir does not exist or is not a directory
		} else {

			for (int i = 0; i < children.length; i++)

			{
				// Get filename of file or directory

				String filename = children[i];
			}

		}

		// It is also possible to filter the list of returned files.
		// This example does not return any files that start with `.'.
		FilenameFilter filter = new FilenameFilter() {
			public boolean accept(File dir, String name) {

				return !name.startsWith(".");
			}
		};
		children = dir.list(filter);

		// The list of files can also be retrieved as File objects

		File[] files = dir.listFiles();

		// This filter only returns directories
		FileFilter fileFilter = new FileFilter() {
			public boolean accept(File file) {

				return file.isDirectory();
			}
		};
		files = dir.listFiles(fileFilter);