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how to backup files and folder with Java
2 Answer(s)      3 years and 10 months ago
Posted in : Java Beginners

Does anyone know to create a backup with java?. backup files and folders from my computer to an external drive.

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May 30, 2013 at 1:27 PM


hi friend,

Try the following code may, this will be helpful for you

package net.roseindia;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;

public class CreateBackupFile{
    public void createBackup(String filename, String... content)
                        throws IOException{
        File originalFile = new File(filename);     
        File backupFile = new File(originalFile.getCanonicalPath() + ".backup");

        originalFile.renameTo(backupFile);
        PrintWriter output = new PrintWriter(originalFile);
        for(String fileData : content){
            output.println(fileData);
        }
        output.close();
    }

    public static void main(String args[])
    {
        CreateBackupFile create = new CreateBackupFile();
        String fileName = "C:\\Documents and Settings\\bharat\\Desktop\\bipul\\New Folder\\TableExample.java";
        File file = new File(fileName);
        BufferedReader br = null;
        String str ="";     

        try {
            br = new BufferedReader(new FileReader(file));
            StringBuilder sb = new StringBuilder();
            while ((str = br.readLine()) != null) {
                sb.append(str);
            }
            br.close();
            String str1 = sb.toString();            
            create.createBackup(fileName, str1);
            System.out.println(str1);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

Thanks.



May 31, 2013 at 6:24 AM


thanks, very nice code.










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