Java 转换流

/* * 转换流InputStreamReader  OutputStreamWriter，将字节流转变为字符流。这样我们可以直接输入中文。 */import java.io.BufferedInputStream;import java.io.BufferedReader;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStream;import java.io.OutputStreamWriter;public class Test16 {    public static void main(String[] args) throws IOException     {        /*         //第一个        InputStreamReader isr = new InputStreamReader(System.in);        BufferedReader br = new BufferedReader(isr);        String str=br.readLine();        while(str!=null)        {            if(str.equalsIgnoreCase("exit"))            {                break;            }            System.out.println(str.toUpperCase());            str=br.readLine();        }*/        //第二个        OutputStream os = new FileOutputStream("f:/d.txt",true);        OutputStreamWriter osw = new OutputStreamWriter(os);        osw.write("我的妈妈");        osw.close();    }}