Sample code for Listing file names in a directory

public String[] getFileNames(String DirPath) {
	String directoryName;
	File directory;
	String[] files;
	directory = new File(DirPath);
	if (directory.isDirectory() == false) {
		if (directory.exists() == false) {
			System.out.println("There is no such directory!");
			return null;
		} else {
			System.out.println("That file is not a directory.");
			return null;
		}
	} else {
		files = directory.list();
		// System.out.println("Files in directory -" + directory + "/:");
		for (int i = 0; i < files.length; i++) {
		//System.out.println("" + files[i]);
		}
		return files;
	}
}