import java.io.FileReader;import java.io.FileWriter;import java.io.IOException;public class CopyText {    public static void main(String arg[]) {        if(arg.length != 2) {            System.out.println("Usage: java CopyText 
     
     
      ");            return;        }        try {            int value;            FileReader in = new FileReader(arg[0]);            FileWriter out = new FileWriter(arg[1]);            while((value = in.read()) != -1)                out.write(value);            in.close();            out.close();        } catch(IOException e) {            System.out.println(e);        }    }}本文转自gnuhpc博客园博客，原文链接：http://www.cnblogs.com/gnuhpc/archive/2012/12/17/2822306.html，如需转载请自行联系原作者