IO流_File类的判断功能

package cn.itcast_05;import java.io.File;/* * 判断功能: * public boolean isDirectory():判断是否是目录(文件夹) * public boolean isFile():判断是否是文件 * public boolean exists():判断是否存在 * public boolean canRead():判断是否可读 * public boolean canWrite():判断是否可写 * public boolean isHidden():判断是否隐藏 */public class FileDemo {public static void main(String[] args) {// 创建文件对象File file = new File("a.txt");// 判断是否是目录(文件夹)System.out.println("isDirectory:" + file.isDirectory());//false// 判断是否是文件System.out.println("isFile:" + file.isFile());//true// 判断是否存在System.out.println("exists:" + file.exists());//true// 判断是否可读System.out.println("canRead:" + file.canRead());//true// 判断是否可写System.out.println("canWrite:" + file.canWrite());//true// 判断是否隐藏System.out.println("isHidden:" + file.isHidden());//false}}