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(1).public   static   String   StrReplace(String   rStr,   String   rFix,   String   rRep)  
      {  
          int   l   =   0;  
          String   gRtnStr   =   rStr;  
          do  
          {  
              l   =   rStr.indexOf(rFix,l);  
              if(l   ==   -1)   break;  
              gRtnStr   =   rStr.substring(0,l)   +   rRep   +   rStr.substring(l   +   rFix.length());  
              l   +=   rRep.length();  
              rStr   =   gRtnStr;  
          }while(true);  
          return   gRtnStr.substring(0,   gRtnStr.length());  
      }
˵Ã÷£ºrStr  Ô´×Ö·û´®
         rFix   Òª²éÕÒÌæ»»µÄ×Ö·û´®
         rRep Ìæ»»³ÉµÄ×Ö·û´®
(2)/**                                              Ô´×Ö´®£¬ÒªÌæ»»Ô´×Ö´®,Ìæ»»ÎªµÄÄ¿µÄ×Ö´®*/  
      public   static   String   replace1(String   s,String   org,String   ob)  
      {  
          String   newString="";  
          int   first=0;  
  &nb


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Java NIO APIÏê½â

 
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java thisºÍsuper¹Ø¼ü×Ö ÓÐʲô×÷ÓóÉÔ±º¯ÊýÖж¨ÒåÁ˺ͳÉÔ±±äÁ¿ÖÐÏàͬµÄ±äÁ¿Ê±£¬ÒýÓóÉÔ±±äÁ¿ÒªÓÃthis. ¹¹Ô캯ÊýÖе÷ÓÃͬһ¸öÀàµÄÆäËû¹¹Ô캯ÊýʱÓÃthis ×ÓÀàÖи²¸ÇÁËÓÚ¸¸Àà³ÉÔ±±äÁ¿»ò³ÉÔ±º¯Êýʱ£¬ÔÚ×ÓÀàÖе÷Óø¸ÀàµÄ±äÁ¿»òº¯ÊýÒªÓÃsuper ×ÓÀàµÄ¹¹Ô캯 ......

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package test;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
public class Test {
 public static void main(String arg[]) {
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JAVAÖÐOracleȡֵ

package com.svse.dao;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
public class UserDAO {
/*
* javaµ÷Óô洢¹ý³Ì
*/
public int addUser(String username,int userage)
{
Connection conn = null;
int useri ......
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