package com.simple.connection;

import java.io.BufferedInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;

public class Example1 {
    public static final String ADDRESS = "http://fullhdwall.com/wp-content/uploads/2016/11/Yellow-New-Year-Background.jpg";
    public static final String TARGET_FILE = "Foo.jpg";

    public static void main(String[] args) throws IOException {
        byte[] target;
        long before = System.nanoTime();
        URLConnection conn = new URL(ADDRESS).openConnection();
        try (InputStream is = new BufferedInputStream(conn.getInputStream());
             FileOutputStream fileOutputStream = new FileOutputStream(TARGET_FILE)) {
            target = new byte[conn.getContentLength()];
            int bytesRead;
            while ((bytesRead = is.read(target, 0, target.length)) != -1) {
                fileOutputStream.write(target, 0, bytesRead);
            }
        }
        long after = System.nanoTime();
        System.out.println("Download time: " + ((after - before)/1e6) + "ms");
        System.out.println("Total: " + target.length/1024 + "kB");
    }
}