Advanced API (byte stream & buffer stream)

Byte stream
                File input stream （ Read ）        FileInputStream
                  File output stream （ write in ）        FileOutputStream
Buffer flow （ Speed up efficiency ）

Buffered input stream         BufferedInputStream

Buffering the output stream          BufferedOutputStream

Operation format ：

1. structure File object
        File file = new File("D:\\ty.txt");
     （FileOutputStream The output stream will automatically create a file ）
        2. take file Object into the stream object ---- Output stream FileOutputStream
        FileOutputStream fos = new FileOutputStream(file);
        3. Provide written data  //a
          char sb = 'a';
         adopt fos Object to write data
          fos.write(sb);
   
         Write one byte array at a time
        String str = " I'm your brother ";
        fos.write(str.getBytes());
        
        System.out.println(" Write successfully ");
        4. close resource
        fos.close();