Java tutorial
import java.io.BufferedInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.net.URL; public class Main { /** * Saves a file from the given URL to the given filename and returns the file * @param link URL to file * @param fileName Name to save the file * @return The file * @throws IOException Thrown if any IOException occurs */ public static File saveFileFromNet(URL link, String fileName) throws IOException { InputStream in = new BufferedInputStream(link.openStream()); ByteArrayOutputStream out = new ByteArrayOutputStream(); byte[] buf = new byte[1024]; int n = 0; while (-1 != (n = in.read(buf))) { out.write(buf, 0, n); } out.close(); in.close(); byte[] response = out.toByteArray(); File file = new File(fileName); if (!file.exists()) { if (file.getParentFile() != null) { file.getParentFile().mkdirs(); } file.createNewFile(); } FileOutputStream fos = new FileOutputStream(file); fos.write(response); fos.close(); return new File(fileName); } }