Java-io Stream (File object-depth traversal of folders and files under the specified directory)

Requirements: traverse this tree structure

   File (String pathname)  ' \ \ ' In order to escape the ' \ '///  through the abstract path pathname create a new document or directory     , "e:\\ Test\\aa "); //       exists determine whether a    file or directory exists; if (! parent.exists ()) {//          mkdirs Create multilevel directory         parent.mkdirs ();    }

ImportJava.io.File; Public classTest { Public Static voidMain (String args[]) {File file=NewFile ("d:\\ #test");//This folder already exists in the computer, do not need to create a newlistall (file); //Traverse this folder (all files and folder names in the directory)    }    Private Static voidlistall (file file) {//gets all file objects and filenames under the specified directory .File[] F =File.listfiles ();  for(File ff:f) {System.out.println (Ff.getabsolutepath ());
System.out.println (Ff.getname ()); }        }}

ImportJava.io.File; Public classTest { Public Static voidMain (String args[]) {File file=NewFile ("d:\\ #test");//This folder already exists in the computer, do not need to create a newListall (file,0); //Traverse this folder (all files and folder names in the directory)    }    Private Static voidListall (File file,intLevel ) {System.out.println (Getsapce level)+file.getname ()); //gets all file objects and filenames under the specified directory .File[] F =File.listfiles (); level++;  for(File ff:f) {if(Ff.isdirectory ()) {Listall (ff,level); }ElseSystem.out.println (Getsapce (level)+ff.getname ()); }        }         Public StaticString Getsapce (intLevel ) {StringBuilder SB=NewStringBuilder ();  for(intx=0;x<level;x++) {sb.append ("|----"); }        returnsb.tostring (); }}

Io Stream (File Object-practice-deep Traverse folder)

Java-io Stream (File object-depth traversal of folders and files under the specified directory)