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package com.sj.main;
public class Snippet {
public static void main(String[] args){
//Õâ¸öÀàÖ÷ÒªÊÇÉèÖÃÓʼþ
MailSenderInfo mailInfo = new MailSenderInfo();
String biaoti ="ÎÒÊÇËÕ½¨£¬ÕâÊÇÎҵIJâÊÔÓʼþ";
String neirong = "ÎÒÊÇËÕ½¨ÒÔÏÂÊÇÎҵIJâÊÔÓʼþ£¬»¶Ó­´ó¼Ò½ ......

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String filename="mydict.txt";
File file=new File(filename);
//read file
if(file.exists())
{
try
{
BufferedReader br=new BufferedReader(new FileReader(file));
String temp=null;
while((temp=br.readLine())!=null) ......

How Java handles arguments of a class type.

=====suppose such a method:
public static void openFile(String fileName, PrintWriter stream) throws FileNotFoundException
{
   stream = new PrintWriter(fileName);
}
=====then we want to use it this way:
PrintWriter toFile = null;
try
{
   openFile("data.txt", t ......

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