编码转换

package com.itcast;

import java.io.*;

/**
 * @author newcityman
 * @date 2019/7/28 - 22:16
 * 练习：转换文件编码
 *     将GBK编码的文本文件，转换成UTF-8编码的文件
 */
public class demo06Test {
    public static void main(String[] args) throws IOException {
        InputStreamReader isr = new InputStreamReader(new FileInputStream("day18_IOAndProperties\\我是GBK格式的文件.txt"),"gbk");
        OutputStreamWriter osr = new OutputStreamWriter(new FileOutputStream("day18_IOAndProperties\\我是UTF_8格式的文件.txt"),"utf-8");
        int len;
        while((len=isr.read())!=-1){
            osr.write(len);
        }
        osr.close();
        isr.close();
    }
}