编写二进制流

import java.io.BufferedOutputStream;

import java.io.DataOutputStream;

import java.io.File;

import java.io.FileNotFoundException;/* 来自 时 代      J a v a   公   众 号 - nowjava.com*/

import java.io.FileOutputStream;


public class Main {

  public static void main(String[] args) throws FileNotFoundException {

    File file = new File("name");

    DataOutputStream out = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(file)));

  }

}