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/*
*    lfsfxy9 @ 09.12.25
*  Ö÷ÒªÓÃÓÚÈ¥³ý×Ö·ûÊäÈë¹ý³ÌÖжàÊäÈëµÄ¿Õ¸ñ¡£
*  ´Ë´úÂëΪJava×÷Òµ
*/
import java.io.*;
public class fileinout {     public static void main(String[] orgs){
        char c;
        int c1;
        int a=0;//¿Õ¸ñ¼ÆÊýÓà ¡£
        File filePath=new File("temp");
        if(!filePath.exists()) filePath.mkdirs();
        File f1=new File(filePath,"d1.txt");
        try{
            FileOutputStream fout=new FileOutputStream(f1);
            System.out.println("ÇëÊäÈë×Ö·û´®£¬ÒÔ#×÷Ϊ½áÊø·û .");
            while ((c=(char)System.in.read())!='#'){
                fout.write(c);
            }
            fout.close();
            System.out.println("´òÓ¡´ÓÎļþÖжÁÈëµÄÊý¾Ý ");
            FileInputStream fin=new FileInputStream(f1);
            c1=fin.read();
            System.out.print((char)c1);
            while ((c1=fin.read())!=-1){
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WorkbookÀàÌṩµÄ·½·¨ 
¡¡¡¡1. int getNumberOfSheets() 
¡¡¡¡»ñµÃ¹¤×÷±¡£¨Workbook£©Öй¤×÷±í£¨Sheet£©µÄ¸öÊý£¬Ê¾Àý£º 
jxl.Workbook rwb = jxl.Workbook.getWorkbook(new File(sourcefile)); 
int sheets = rwb.getNumberOfSheets(); &nbs ......

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;  //Çý¶¯³ÌÐòString URL="jdbc:mysql://localhost:3306/db_name"
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package com;
import java.util.*;
public class WhatDay {
 public static void main(String[] args) {
  Calendar c = Calendar.getInstance();
  c.setTime(new Date(System.currentTimeMillis()));
  int dayOfWeek = c.get(Calendar.DAY_OF_WEEK);
  switch (day ......
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