package cn.itcast_02;

 import java.io.FileOutputStream;

 import java.io.IOException;

 import java.io.OutputStreamWriter;

 /*

  * OutputStreamWriter(OutputStream out):根据默认编码把字节流的数据转换为字符流

  * OutputStreamWriter(OutputStream out,String charsetName):根据指定编码把字节流数据转换为字符流

  * 把字节流转换为字符流。

  * 字符流 = 字节流 +编码表。

  */

 public class OutputStreamWriterDemo {

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

         // 创建对象

         // OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream(

         // "osw.txt")); // 默认GBK

         // OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream(

         // "osw.txt"), "GBK"); // 指定GBK

         OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream(

                 "osw.txt"), "UTF-8"); // 指定UTF-8

         // 写数据

         osw.write("中国");

         // 释放资源

         osw.close();

     }

 }