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JAVA directory operation : List files in a folder , copy files and folder creation



List files in a folder

 import java.io.*;
public static Vector listFiles_Files_Dir(String absPathFolder)
    {
        Vector vectAllFiles = new Vector();


        File folder = new File(absPathFolder);
        File[] listOfFiles = folder.listFiles();

        for (int i = 0; i < listOfFiles.length; i++) {
            if (listOfFiles[i].isFile()) {
               
                System.out.println("File: " + listOfFiles[i].getName());
                vectAllFiles.add(listOfFiles[i].getName() );
               
            } else if (listOfFiles[i].isDirectory()) {
               
                System.out.println("Directory: " + listOfFiles[i].getName());
                vectAllFiles.add(listOfFiles[i].getName() );
               
            }
        }

        return vectAllFiles;
    }


Create folder 

    import java.io.*; 
    public static void create_new_folder(String absPathFolder)
    {
        File theDir = new File(absPathFolder);

        // if the directory does not exist, create it
        if (!theDir.exists()) {
            System.out.println("creating directory: " + absPathFolder);

            try{
                theDir.mkdir();
            } catch(SecurityException se){
                se.printStackTrace();
            }

        }
    }

Copy and paste files from a  folder to another folder

    import java.nio.file.Files;
    import java.io.*;
    public static void copy_paste_file(String pathCopy, String pathPaste)
    {
        try {
            File source = new File(pathCopy);
            File dest = new File(pathPaste);
            Files.copy(source.toPath(), dest.toPath());
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

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