package 字符流;

import java.io.*;

public class TestCopy {
    public static void main(String[] args) throws IOException {
        Reader reader=new FileReader("user.java");
        Writer writer=new FileWriter("user_copy.java");
        int len=0;
        char[] buffer=new char[1024];
        while((len =reader.read(buffer))!=-1){
            writer.write(buffer,0,len);
        }
        reader.close();
        writer.close();
    }
}

//与字节流相比,格式会有所变化.