实例

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
/**
 * 字节输出缓冲流
 * @author Administrator
 *
 */
public class BufferOutputStreamStudy {
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        //定义文件对象
        String path = "D:\\movie\\japan\\dj\\cxk.txt";
        File file = new File(path);
        BufferedOutputStream bos = null;
        FileOutputStream fos = null;
        try {
            if(!file.exists()) {
                file.createNewFile();
            }
            //实例化流
            fos = new FileOutputStream(file);
            bos = new BufferedOutputStream(fos);
            //向文件写入内容
            String str = "它不是拍电影的，它是个运动员！！！！！！！";
            byte[] data = str.getBytes();
            //写
            bos.write(data);
            //刷新（清空）缓冲流-->低级流
            bos.flush();
        }catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
        }finally {
            //关闭流
            try {
                bos.close();
                fos.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }
}