关于IO流的小疑点，小弟我是新手，希望大家指点

A的内容：这是一个B文件的内容：java练习

import java.io.*;public class Combine {    public static void main(String[] args) {        String[] name = new String[2];        String nameC = null;        System.out.println("About this program:这个程序可以将您输入的两个文件A与B合并成C");        System.out.println("请输入您想合并两个文件名（加上后缀），每个文件名以回车确认：");        BufferedReader getInput = new BufferedReader(new InputStreamReader(                System.in));        BufferedReader bufferedR = null;        BufferedWriter bufferedW = null;        File[] file = new File[2];        try {            for (int i = 0; i < 2; i++) {                name[i] = getInput.readLine();                file[i] = new File(name[i]);            }            nameC = name[0].substring(0, name[1].indexOf(".")) + name[1];            bufferedW = new BufferedWriter(new FileWriter(                    new File(nameC)));            String line;            for (int i = 0; i < 2; i++) {                bufferedR = new BufferedReader(new FileReader(file[i]));                while ((line = bufferedR.readLine()) != null) {                    bufferedW.write(line + "\n");                    System.out.println("next");                    getInput.read();                }            }            System.out.println("合并成功！");        } catch (IOException e) {            e.printStackTrace();        } finally {            try {                getInput.close();                bufferedR.close();                bufferedW.close();            } catch (Exception e) {                System.out.println("Wrong when close the stream.");            }        }    }}