Creation, renaming, and traversal of the Java IO File

A file or directory on a storage device, which can be used to view the API in a simple way

1  PackageOrg.zln.io.file;2 3 ImportJava.io.File;4 5 /**6 * Created by Coolkid on 2015/6/21 0021.7  */8  Public classTestfile {9     /*Current Program Root path*/Ten      Public Static FinalString RootPath = System.getproperty ("User.dir"); One      Public Static voidMain (string[] args) { A         //createFile1 (); - //rename (); -Showfilelist (NewFile (RootPath)); the     } -  -     /** - * Traverse Folder +      * @paramFile root directory -      */ +     Private Static voidshowfilelist (file file) { A         if(File.isdirectory ()) { atSystem.out.println ("Directory:" +File.getabsolutepath ()); -file[] Files =file.listfiles (); -              for(File file1:files) { - showfilelist (file1); -             } -}Else { inSystem.out.println ("File:" +File.getabsolutepath ()); -         } to     } +  -     /** the * Renaming of files *      */ $     Private Static voidrename () {Panax NotoginsengString mypath=rootpath+ file.separatorchar+ "MyFile"; -File File =NewFile (myPath); the         if(!file.exists ()) { + createFile1 (); A}Else { theFile NewFile =NewFile (rootpath+ file.separatorchar+ "Myfilenew"); + File.renameto (newFile); -System.out.println (Newfile.getabsolutepath () + "Create successful"); $         } $  -     } -  the     /** - * Creation of filesWuyi      */ the     Private Static voidCreateFile1 () { -String mypath=rootpath+ file.separatorchar+ "MyFile"; WuFile File =NewFile (myPath); -         if(!file.exists ()) { AboutSystem.out.println (File.getabsolutepath () + "does not exist, create"); $             if(File.mkdirs ()) { -SYSTEM.OUT.PRINTLN ("created successfully"); -}Else { -System.out.println ("Create failed"); A             } +         } the     } -}

Creation, renaming, and traversal of the Java IO File