OutputStreamWriter写的转化流

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;

public class Demo03OutputStreamWriter {
    public static void main(String[] args) throws IOException {

        write_utf_8();
        write_GBK();

    }

    private static void write_GBK() throws IOException {
        OutputStreamWriter osw=new OutputStreamWriter(new FileOutputStream("F:\basic\untitled13\src\it\cast\day15\demo05\gbk.txt"),"GBK");
        osw.write("你好gbk");
        osw.flush();
        osw.close();
    }

    private static void write_utf_8() throws IOException {//utf-8格式的文件
        OutputStreamWriter osw=new OutputStreamWriter(new FileOutputStream("F:\basic\untitled13\src\it\cast\day15\demo05\utf_8.txt"),"UTF-8");
        osw.write("你好utf-8");
        osw.flush();
        osw.close();
    }
}