How to copy file from directory to another Directory in Java

Question

I am using JDK 6.

I have 2 folders names are Folder1 and Folder2.

Folder1 have the following files

TherMap.txt

TherMap1.txt

TherMap2.txt

every time Folder2 have only one file with name as TherMap.txt.

What I want,

copy any file from folder1 and pasted in Folder2 with name as TherMap.txt.If already TherMap.txt exists in Folder2, then delete and paste it.

for I wrote the following code.but it's not working

public void FileMoving(String sourceFilePath, String destinationPath, String fileName) throws IOException {
    File destinationPathObject = new File(destinationPath);
    File sourceFilePathObject = new File(sourceFilePath);
    if ((destinationPathObject.isDirectory()) && (sourceFilePathObject.isFile()))
    //both source and destination paths are available 
    {
        //creating object for File class
        File statusFileNameObject = new File(destinationPath + "/" + fileName);
        if (statusFileNameObject.isFile())
        //Already file is exists in Destination path
        {
            //deleted File
            statusFileNameObject.delete();
            //paste file from source to Destination path with fileName as value of fileName argument
            FileUtils.copyFile(sourceFilePathObject, statusFileNameObject);
        }
        //File is not exists in Destination path.
        {
            //paste file from source to Destination path with fileName as value of fileName argument
            FileUtils.copyFile(sourceFilePathObject, statusFileNameObject);
        }
    }
}

I call the above function in main()

 //ExternalFileExecutionsObject is class object
 ExternalFileExecutionsObject.FileMoving(
            "C:/Documents and Settings/mahesh/Desktop/InputFiles/TMapInput1.txt",
            "C:/Documents and Settings/mahesh/Desktop/Rods",
            "TMapInput.txt");

While I am using FileUtils function, it showing error so I click on error, automatically new package was generated with the following code.

 package org.apache.commons.io;
 import java.io.File;
 public class FileUtils {
    public static void copyFile(File sourceFilePathObject,
        File statusFileNameObject) {
        // TODO Auto-generated method stub
    }
 }

my code not showing any errors,even it's not working.

How can I fix this.

Thanks

Answer 1

Use Apache Commons FileUtils FileUtils.copyDirectory(source, desc);