转换流 字节到字符的转换（解码，读取） 字符到字节（编码，写入）

package Iotext;


/**
 * 转换流：字节转换为字符
 *1.输出流：OutputstreamWriter 编码
 *2.输入流 ：InputStreamReader  解码
 */


import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;



public class ConverDemo02 {
      
    /**
     * @param args
     * @throws IOException 
     */
    public static void main(String[] args) throws IOException {
           //指定解码字符集
           BufferedReader br =new BufferedReader(
                   //字节流个字符流不能直接操作，加一个InputStreamreader转换流
                         new InputStreamReader(
                                new 
                                BufferedInputStream(
                                              
                               new FileInputStream( 
                                                            new File("E:/xp/test/Demo03.java"))),"UTF-8")
                         );
           //写出文件 编码
           BufferedWriter bw =new BufferedWriter(
                         new OutputStreamWriter(
                                new BufferedOutputStream(     
                                new FileOutputStream(new 
                                File("E:/xp/test/encode.java"
                                )))));
                         
           String info =null;
           while(null!=(info=br.readLine())){
                  //System.out.println(info);
                  bw.write(info);
                  bw.newLine();
           }
           bw.flush();
           bw.close();
           br.close();
    }

}