Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.io.*;

import java.nio.channels.FileChannel;

public class Main {
    public static void copyFile(File sourceFile, File destFile) throws IOException {
        if (!destFile.exists()) {
            if (!destFile.createNewFile()) {
                throw new IOException("Cannot create file: " + destFile.getCanonicalFile());
            }
        }
        FileChannel source = null;
        FileChannel destination = null;
        try {
            source = new FileInputStream(sourceFile).getChannel();
            destination = new FileOutputStream(destFile).getChannel();
            long count = 0;
            long size = source.size();
            while ((count += destination.transferFrom(source, count, size - count)) < size)
                ;
        } finally {
            if (source != null) {
                source.close();
            }
            if (destination != null) {
                destination.close();
            }
        }
    }
}