Java tutorial
import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; public class Main { public static void main(String[] args) throws Exception { FileOutputStream fos = new FileOutputStream(new File("C:/Demo")); BufferedOutputStream bos = new BufferedOutputStream(fos); bos.write("this is a test".getBytes()); bos.flush(); bos.close(); } }