thinking recursively with java

In general, when we save a file in a project, we store the directory information in a single table and store the file information in another table. When we need to delete the specified directory, we first need to delete all the information in the database directory and subdirectories, then delete the file information, and finally delete the created file directory, if there are subdirectories, you need to use recursive Delete, that is: Process of deleting subdirectories and files in the specified

/*** Recursively read all documents under Folder *@authorAdministrator **/ Public classfileloop{Private StaticListNewArraylist(); Public Static voidMain (string[] args) {List); for(inti=0; I) {System.out.println (NewSimpleDateFormat ("Yyyy-mm-dd HH:mm:ss"). Format (NewDate (List.get (i). LastModified ()) + ":" +List.get (i). GetName ()); } } /*** Loop to get all files under the specified folder *@paramPath*/ Private voidLoopreaddir (S

packagecuiyuee;Importjava.io.File;Importjava.util.ArrayList;Importjava.util.List; public classGetalldirectory { public Static voidshowdirectory (file file) {file[] files=File.listfiles (); for(File a:files) {System.out.println (a.getabsolutepath ()); if(a.isdirectory ()) {showdirectory (a); } } } public Static voidmain (string[] Args) {//TODO auto-generated Method StubFile File =NewFile ("f:\\java"); Showdirectory (file); }}Execu

Static voidgetjavafile (File allfile) { to + //get file array for all files or folders in this directory -file[] Arryfile =allfile.listfiles (); the * //iterate over the file array $ for(File file:arryfile) {Panax Notoginseng - //determine if it is a folder the if(File.isdirectory ()) { + //if so, continue to use this folder as a directory to get a file array of files or folders inside it. A

()throwsFileNotFoundException, IOException, classnotfoundexception {Scanner scan=NewScanner (system.in); for(inti=0;i) {System.out.print ("Please enter the study number:"); String ID=Scan.next (); Student Student=NewStudent (); Student.setid (ID); System.out.println ("Please enter your name:"); String name=Scan.next (); Student.setname (name); System.out.println ("Please enter your ID number:"); String UID=Scan.next (); Student.setuid (UID); ObjectOutputStream

absolute pathname, then each path name obtained is an absolute pathname, and if the pathname is a relative pathname, each path name obtained is relative to the same directory's pathname. It is not guaranteed that the same strings in the resulting array will appear in a particular order, especially if they are not guaranteed to appear in alphabetical order. Return: Abstract path An array group, which represents the file

PackageCom.sxd.createDao;ImportJava.io.File;ImportJava.time.LocalDateTime;ImportJava.util.HashMap;ImportJava.util.Map;ImportJava.util.TreeMap; Public classTest {Private LongA = 0; MapNewHashmap(); MapNewTreemap(); @org. Junit.test Public voidTest () {System.out.println (Localdatetime.now ()); //all files on the native diskFile [] files =file.listroots (); for(file file:files) {num (file); }//num (New File ("D:/baiduyundownload")); //under a single folderSystem.out.println ("Total number of comp

, illegalaccessexception {//Loader1 's parent loader is the System class loaderMyclassloader Loader1 =NewMyclassloader ("Loader1"); Loader1.setpath ("D:/lib1/"); //Loader2 's parent loader is Loader1Myclassloader Loader2 =NewMyclassloader (Loader1, "Loader2"); Loader2.setpath ("D:/lib2/"); //Loader3 's parent loader is the root class loaderMyclassloader Loader3 =NewMyclassloader (Loader2, "Loader3"); Loader3.setpath ("D:/lib3/"); Class); System.out.println (Clazz.getclassloader ()); Class

Java, recursively returning all files on all disks Package COM. java. others;

　　public static string Getalldirectorisandfiles (string path) {map　　Recursively read the implementation of all folders and files in the development directory (Java)

[Thinking in Java] Chapter 7th-reuse classes and reuse of thinking [Code reuse is one of the many notable functions of Java. But to become a revolutionary language, it is not enough to simply copy and change the code. It must be able to do more .] 7.1 combined syntax The combination is to put the object in the new cla

Thinking in JAVA notes-Chapter 1 Introduction to objects and thinking This chapter introduces the basic concepts and principles of object-oriented 1.1 Abstraction My understanding: Hiding complex and useless attributes, leaving what the program needs 1.2 each object has an Interface Question: The concept of interfaces and implementations and why the interface mec

Since there are few good books on C #-Based Object-Oriented ideology and methods, I started to read thinking in Java 3rd to understand some object-oriented ideology and methods, write down some wonderful paragraphs (statements). For the first time, I thought about classes and objects (of course I thought about them in the original book)The Chinese translation is translated by a netizen on the Internet. As f

Do you have to learn the Java language to see Bruce Eckel's incisive discussion of object-oriented ideas in thinking in Java? Have you always known this famous book and saw the Java in the title, which is daunting? But it doesn't matter now. Larry o'brien and Bruce Eckel bring thi