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Copy file from one folder to another in java

This example explains how to Copy file from one folder to another in java. package com.javatechig; import java.io.File;…

September 10, 2014 · 4 min read

This example explains how to Copy file from one folder to another in java.

package com.javatechig;
 
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;
 
public class CopyFile {
 
    public static void main(String[] args) {
        File sourceFile = new File(
                "/Users/Neel/Documents/Workspace/file1.txt");
 
        File destFile = new File(
                "/Users/Neel/Documents/Workspace/file2.txt");
 
        /* verify whether file exist in source location */
        if (!sourceFile.exists()) {
            System.out.println("Source File Not Found!");
        }
 
        /* if file not exist then create one */
        if (!destFile.exists()) {
            try {
                destFile.createNewFile();
 
                System.out.println("Destination file doesn't exist. Creating one!");
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
 
        FileChannel source = null;
        FileChannel destination = null;
 
        try {
 
            /**
             * getChannel() returns unique FileChannel object associated a file
             * output stream.
             */
            source = new FileInputStream(sourceFile).getChannel();
 
            destination = new FileOutputStream(destFile).getChannel();
 
            if (destination != null && source != null) {
                destination.transferFrom(source, 0, source.size());
            }
 
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
 
        finally {
            if (source != null) {
                try {
                    source.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (destination != null) {
                try {
                    destination.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

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