public class File {

    public static void main(String[] args) {
        File file = new File("E:\\kankan\\XMPCache");
        File absoluteFile = file.getAbsoluteFile();
        System.out.println("getAbsoluteFile:" + absoluteFile);
        String AbsPath = file.getAbsolutePath();
        System.out.println("getAbsolutePath:" + AbsPath);
        String path = file.getPath();
        System.out.println("getPath:" + path);
        File parentFile = file.getParentFile();
        File parentFile1 = parentFile.getParentFile();
        System.out.println("父類檔案parentFile:" + parentFile);
        System.out.println("父類的父類檔案parentFile1：" + parentFile1);
        File[] files = file.listFiles();
        System.out.println("=============");
        for (File f: files) {
            System.out.println("listFiles:" + f.getName());
            System.out.println("是否是隱藏檔案:" + f.isHidden());
            System.out.println("是否是絕對路徑名:" + f.isAbsolute());
        }
        System.out.println("==============");
        File[] root = file.listRoots();
        for (File f : root) {
            System.out.println("listRoots:" + f);
            System.out.println("listRoots:" + f.getName());
        }
        System.out.println("===========");

    }
}