文件操作问题，急！！！马上给分

Question

Option是什么??
是那个包的?你的文件内容是
  new Option("北京-民熙号","2932"),
  new Option("北京-麒麟号","2933"),
  new Option("北京-定远号","2934"),
  new Option("上海-昭君号","2935"),
  new Option("上海-蓬景号","2936"),
  new Option("上海-海玄号","2937"),
  new Option("上海-曙光号","2938"),
  new Option("上海-凯旋号","2939"),
.
.
.
.
.
疑惑了?

Answer 1

import java.io.*;
import java.util.regex.*;public class TestFile
{
  public static void main(String[] args)
  {
  try
  {
String inFile = args[0];
  String outFile = args[1]; String line;

BufferedReader in = new BufferedReader(
                       new InputStreamReader(new FileInputStream(inFile), "GB2312")); BufferedWriter out = new BufferedWriter(
                      new OutputStreamWriter(new FileOutputStream(outFile),"GB2312"));        Pattern p = Pattern.compile("(\"[^\"]*?\")([^\"]*?)(\"[^\"]*?\")");
        
        String aLine = null;
        while((aLine = in.readLine()) != null) {     Matcher m = p.matcher(aLine);
            out.write(m.replaceAll("$1$2$1"));
    out.newLine();
        }
        in.close();
        out.close();
  }
  catch (Exception ex)
  {
ex.printStackTrace(System.out);
  }  }
}

Answer 2

FileReader reader = new FileReader(new File("d:/a.txt"));
BufferedReader bReader = new BufferedReader(reader);
FileWriter writer = new FileWriter(new File("d:/b.txt"));
BufferedWriter bWriter = new BufferedWriter(writer);
String str = "";
String temp;
while(true) {
str = bReader.readLine();
if (str != null) {
         temp = str.substring(str.indexOf("\""), str.indexOf("\"") + 8);
str = str.substring(0, str.indexOf(",") + 1) + temp + "),";
bWriter.write(str);
bWriter.newLine();
} else {
break;
}
}
reader.close();
bReader.close();
bWriter.close();
writer.close();

Answer 3

public void test()
{
try
{
File file = new File("Y:/src.txt");
File destfile = new File("Y:/dest.txt");
FileInputStream in = new FileInputStream(file);
FileOutputStream out = new FileOutputStream(destfile);
BufferedReader reader = new BufferedReader(new InputStreamReader(in, "GBK"));
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(out, "GBK"));
String str = "";
String ori = "";
String dest = "";
while ((str = reader.readLine()) != null)
{
ori = str.substring(str.indexOf("\"") + 1, str.indexOf(",") - 1);
System.out.println("ori=" + ori);
dest = str.substring(0, str.indexOf(",") + 2) + ori + "\")";
System.out.println("dest=" + dest);
writer.newLine();
writer.write(dest, 0, dest.length());
writer.flush();
}
}
catch (IOException io)
{
io.printStackTrace();
}
}src.txt内容是
new Option("北京-民熙号","2932"),
new Option("北京-麒麟号","2933"),
new Option("北京-定远号","2934"),
new Option("上海-昭君号","2935"),
new Option("上海-蓬景号","2936"),
new Option("上海-海玄号","2937"),
new Option("上海-曙光号","2938"),
new Option("上海-凯旋号","2939"),

Answer 4

搞定了，测试了一下，都改过来了！写了类加入此方法就ok了(类需要import java.io.*)    /*
     * strReadFile:源文件路径(如：C:\test.txt)
     * strWriteFile：存放替换后内容的文件路径(如：C:\test1.txt)
     */
    public static void fileTransfer(String strReadFile,String strWriteFile)
    {
        try
        {
            File readFile = new File(strReadFile);
            BufferedReader br = new BufferedReader(new FileReader(readFile));
            File writeFile = new File(strWriteFile);
            BufferedWriter bw = new BufferedWriter(new FileWriter(writeFile,true));
            String strOneOpetion = new String();
            while((strOneOpetion=br.readLine())!=null)
            {
                if(strOneOpetion.length()>0)
                {
                    int iIndex1 = strOneOpetion.indexOf("(");
                    int iIndex2 = strOneOpetion.indexOf(")");
                    if(iIndex1!=-1 && iIndex2!=-1)
                    {
                        String strTemp = strOneOpetion.substring(iIndex1+1,iIndex2);
                        String[] arrPartValue = strTemp.split(",");
                        if(arrPartValue==null && arrPartValue.length<2) continue;
                        strOneOpetion = strOneOpetion.replaceAll(arrPartValue[1],arrPartValue[0]);
                        bw.write(strOneOpetion+"\n");
                        bw.flush();
                    }
                }
            }
            br.close();
            bw.close();
        }
        catch(IOException e)
        {
            System.out.println(e.getMessage());
        }
    }

Answer 5

FileReader fr=new FileReader("yourfile");
BufferedReader br=new BufferedReader(fr);
FileWriter fw=new FileWriter("newfile");
BufferedWriter bw=new BufferedWriter(fw);
String s;
StringBuffer sb;
while ((s=br.readLine())!=null){
int start1,end1,start2,end2;
start1=s.indexOf('/"');
end1=s.indexOf('/"',start1);
s1=s.substring(start1+1,end1);
start2=s.indexOf('/"',end1);
end2=s.indexOf('/"',start2);
sb=new StringBuffer(s);
sb.replace(start2+1,end2,s1);
bw.write(sb.toString());
}
只是随便写写，没测试过，望有所帮助

Answer 6

用regular expression可以，（不过不太懂）Hodex(小何才露尖尖角）的方法也可以