java创建文件夹

/**
	 * 创建文件夹
	 * @param args
	 */
	public static void main(String[] args) {
		try {
			File dirFile = new File("E:/tt/aa/bb/cc/dd");
			boolean bFile = dirFile.exists();
			if (bFile == true) {
				System.out.println("The folder exists.");
			} else {
				System.out.println("The folder do not exist,now trying to create a one...");
				bFile = dirFile.mkdir();
				if (bFile == true) {
					System.out.println("Create successfully!");
					System.out.println("创建文件夹");
				} else {
					System.out.println("Disable to make the folder,please check the disk is full or not.");
					System.out.println("文件夹创建失败，清确认磁盘没有写保护并且空件足够");
					//System.exit(1);
				}
			}
		} catch (Exception err) {
			System.err.println("Create folder is error,because the disk is full or not or the superior folder not exists.");
			err.printStackTrace();
		}
	}

 注意:

         所创建的目录，如果有上级目录，务必要确认上级目录文件夹的存在

         eag:   创建dd文件夹

                   "E:/tt/aa/bb/cc/dd"，路径中的cc，bb，aa，tt目录文件夹，必须要存在