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| package File_package; | |
| import java.io.File; | |
| public class File_demo2 { | |
| public static void main(String[] args) { | |
| /* | |
| public boolean isDirectory () 判断此路径名表示的File是否为文件夹 | |
| public boolean isFile () 判断此路径名表示的File是否为文件 | |
| public boolean exists () 判断此路径名表示的File是否存在 | |
| */ | |
| //1、对一个文件的路径进行判断 | |
| File f1 = new File("/Users/zhaoxiaoyong/Documents/Java/File_project/File_module/src/File_package/File1"); | |
| System.out.println(f1.isDirectory());//false | |
| System.out.println(f1.isFile());//true | |
| System.out.println(f1.exists());//true | |
| System.out.println("---------------------"); | |
| //2、对一个文件夹路径进行判断 | |
| File f2 = new File("/Users/zhaoxiaoyong/Documents/Java/File_project/File_module/src/File_package"); | |
| System.out.println(f2.isDirectory());//true | |
| System.out.println(f2.isFile());//false | |
| System.out.println(f2.exists());//true | |
| System.out.println("---------------------"); | |
| //3、对一个不存在的路径进行判断 | |
| File f3 = new File("/Users/zhaoxiaoyong/Documents/Java/File_project/File_module/src/File_package1"); | |
| System.out.println(f3.isDirectory());//false | |
| System.out.println(f3.isFile());//false | |
| System.out.println(f3.exists());//false | |
| } | |
| } | |