111023_JAVA_資料格式化

import java.io.*;


public class stuList {
static String pickName(String a){
a = a.substring(14, 25);
a = a.substring(0,a.indexOf(" "));
return a;
}
public static void main(String[] args) throws Exception {
FileReader liststu = new FileReader("c:\\stuMAIL.txt");
BufferedReader bufferListstu = new BufferedReader(liststu);
FileWriter wrFile = new FileWriter("c:\\output.txt");
BufferedWriter bw = new BufferedWriter(wrFile);

String nameList;
String outNameList;
String num;

while((nameList = bufferListstu.readLine())!=null){
num = nameList.substring(1, 10);
outNameList = num +",,"+ pickName(nameList)
 +","+ num.toLowerCase() +"@ms1.uuu.edu.tw,,,3";
bw.write(outNameList);
bw.newLine();
}
bufferListstu.close();
bw.close();
}


}

把原本的

"D10318002 ","吳XX      ","d10318002@ms1.uuu.edu.tw"

"D10318003 ","歐XX      ","d10318003@ms1.uuu.edu.tw"
"D10318004 ","蔡XX      ","d10318004@ms1.uuu.edu.tw"

...

改成

D10318002,,吳XX,d10318002@ms1.uuu.edu.tw,,,3

D10318003,,歐XX,d10318003@ms1.uuu.edu.tw,,,3

D10318004,,蔡XX,d10318004@ms1.uuu.edu.tw,,,3