网页抄代码专用

import java.io.*;

public class Translate {
    public static void main(String[] args) throws IOException {
        String fileName = "a";
        File a = new File(fileName);
        File b = new File(fileName + ".java");
        b.createNewFile();
        PrintWriter printWriter = new PrintWriter(new FileOutputStream(b));
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(new FileInputStream(a)));
        String line = null;
        while ((line = bufferedReader.readLine()) != null) {
            printWriter.println(line.substring(line.indexOf(".")+1));
            printWriter.flush();
        }
    }
}

来源：https://www.cnblogs.com/shun-w/p/12042119.html