Java tutorial
import java.io.BufferedWriter; import java.io.IOException; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.nio.file.StandardOpenOption; public class Main { public static void main(String[] args) { Path rn_demo = Paths.get("C:/tutorial/Java", "demo.txt"); String demo = "tutorial"; String string = "\nString: from java2s.com"; //using NIO.2 unbuffered stream byte data[] = demo.getBytes(); try (OutputStream outputStream = Files.newOutputStream(rn_demo)) { outputStream.write(data); } catch (IOException e) { System.err.println(e); } } }