OutputStreamWriter与InputStreamReader

package com.czie.iot1913.lps.IO.InPutStream;

import java.io.*;

/**
 * FileName: ConversionStreamDemo
 * Author:   lps
 * Date:     2022/3/26 13:23
 * Sign:刘品水 Q：1944900433
 */
public class ConversionStreamDemo {
    public static void main(String[] args) throws IOException {
//  OutputStreamWriter(OutputStream out)
//  创建一个outputstreamwriter使用默认的字符编码。
//  OutputStreamWriter(OutputStream out, Charset cs)
//  创建一个outputstreamwriter使用给定的字符集。
        //FileOutputStream fos = new FileOutputStream("F:\\JavaCode\\osw.txt");
        //OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream("F:\\JavaCode\\osw.txt"));
        //OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream("F:\\JavaCode\\osw.txt"),"UTF-8");
        OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream("F:\\JavaCode\\osw.txt"),"GBK");
        osw.write("中国");
        osw.close();

        //InputStreamReader(InputStream in) 
        //创建一个inputstreamreader使用默认字符集。
        // InputStreamReader(InputStream in, String charsetName)
        //创建一个inputstreamreader使用指定的字符集。
        FileInputStream fis = new FileInputStream("F:\\JavaCode\\osw.txt");
        InputStreamReader isr = new InputStreamReader(fis,"GBK");

        int ch;
        while((ch= isr.read())!=-1){
            System.out.print((char) ch);
        }
        isr.close();




    }
}