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Java moves the file and changes the name

Cut 1.txt from the source folder, move to the target folder, and rename it to 2.txt

/ / cut 1.txt from the source folder, move to the target folder, and rename it to 2.txt File startFile=new File ("D:\\ source\\ 1.txt"); File endFile=new File ("D:\\ target\\ 2.txt"); if (startFile.renameTo (endFile)) {System.out.println ("File moved successfully! Destination path: {"+ endFile.getAbsolutePath () +"} ");} else {System.out.println (" File move failed! Starting path: {"+ startFile.getAbsolutePath () +"});} copy the file specified in the single-level folder and modify the name * requirement: copy the specified file in the specified directory and modify the suffix. * the specified file is: .java file. * the suffix specified is: .jad * the specified directory is: jad * * data source: e:\\ java\\ A.java * destination: e:\\ jad\\ A.jad * * Analysis: * A: encapsulation directory * B: get the File array of java files in this directory * C: traverse the File array Get each File object * D: copy the File * E: rename package cn.itcast_04 in the destination directory Import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.FilenameFilter;import java.io.IOException; / * requirements: copy the specified file in the specified directory and modify the suffix. * the specified file is: .java file. * the suffix specified is: .jad * the specified directory is: jad * * data source: e:\\ java\\ A.java * destination: e:\\ jad\\ A.jad * * Analysis: * A: encapsulation directory * B: get the File array of java files in this directory * C: traverse the File array Get each File object * D: copy the File * E: rename it under the destination directory * / public class CopyFolderDemo {public static void main (String [] args) throws IOException {/ / Encapsulation directory File srcFolder = new File ("e:\\ java") / / Encapsulation destination File destFolder = new File ("e:\\ jad"); / / if the destination directory does not exist, create if (! destFolder.exists ()) {destFolder.mkdir () } / / get the File array of java files in this directory File [] fileArray = srcFolder.listFiles (new FilenameFilter () {@ Override public boolean accept (File dir, String name) {return new File (dir) Name) .isFile () & & name.endsWith (".java") }}); / / iterate through the File array to get each File object for (File file: fileArray) {/ / System.out.println (file) / / data source: e:\ java\ DataTypeDemo.java / / destination: e:\\ jad\ DataTypeDemo.java String name = file.getName (); File newFile = newFile (destFolder, name); copyFile (file, newFile) } / / rename File [] destFileArray = destFolder.listFiles (); for (File destFile: destFileArray) {/ / System.out.println (destFile) under the destination directory / / e:\ jad\ DataTypeDemo.java / / e:\\ jad\\ DataTypeDemo.jad String name = destFile.getName (); / / DataTypeDemo.java String newName = name.replace (".java", ".jad") / / DataTypeDemo.jad File newFile = newFile (destFolder,newName); destFile.renameTo (newFile);}} private static void copyFile (File file, File newFile) throws IOException {BufferedInputStream bis = new BufferedInputStream (new FileInputStream (file)); BufferedOutputStream bos = new BufferedOutputStream (new FileOutputStream (newFile)) Byte [] bys = new byte [1024]; int len = 0; while ((len = bis.read (bys))! =-1) {bos.write (bys, 0, len);} bos.close (); bis.close () }} above is all the contents of the article "how to move files and change their names in java". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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