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();
				}
			}
		}
	}
}
This article is about: Core Java, Java Basics,

Nilanchala

A blogger, a bit of tech freak and a software developer. He is a thought leader in the fusion of design and mobile technologies. He is the author of Xamarin Mobile Application Development for Android Book (goo.gl/qUZ0XV3), DZone MVB and founder of stacktips.com.

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