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public class Migong {
 
    private int gard[][]={  {1,1,1,1,0,1,1,1},
                         {0,0,0,1,1,1,1,1},
                         {1,0,1,0,1,1,1,1},
                         {0,0,1,0,0,0,1,1},
                         {1,0,0,0,0,1,1,1},
                         {1,0,1,1,0,1,1,1},
                         {1,0,1,1,1,1,1,1}};
   
    private boolean recurive(int row,int column){
      
       boolean done = false;
       if(valid(row,column)){
           gard[row][column]=3;//×ß¹ýµÄ¸ñ×Ó
           if(row==gard.length-1&&column==gard[0].length-1){
              done = true;
           }else{
              done=recurive(row+1,column);//ÏÂÒÆ
             
              if(!done){


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System.out.println(2|0); //0010 0000 =>0010 = 2
System.out.println(2|1); //0010 0001 =>0011 = 3
System.out.println(3|2); //0011 0010 =>0011 = 3
System.out.println(3&2); //0011 0010 =>0010 = 2
/*
  ÔÚjavaÖÐ0´ú±í¼Ù, 1´ú±íÕæ
  00011|0010  ´ÓÓÒµ½×ó±È½Ï0|1 = 1, 1|0 = ......

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public class Regex {

/**
* ¼ì²éemailÊäÈëÊÇ·ñÕýÈ·
* ÕýÈ·µÄÊéд¸ñʽΪ username@domain
* @param value
* @return
*/
public boolean checkEmail(String value, int length) {
return value.matches("\\w+([-+.]\\w+)*@\\w+([-.]\\w+)* ......

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jar Ó¦Óà ÏÈ´ò¿ªÃüÁîÌáʾ·û(win2000»òÔÚÔËÐпðÀïÖ´ÐÐcmdÃüÁwin98ΪDOSÌáʾ·û)£¬ÊäÈëjar
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Ó÷¨£ºjar {ctxu}[vfm0Mi] [jar-Îļþ]
[manifest-Îļþ] [-C Ŀ¼] ÎļþÃû ...
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-t Áгö´æµµÄÚÈݵÄÁбí
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1¡¢Oracle8/8i/9iÊý¾Ý¿â£¨thinģʽ£©
Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
String url="jdbc:oracle:thin:@localhost:1521:orcl"; //orclΪÊý¾Ý¿âµÄSID
String user="test";
String password="test";
Connection conn= DriverManager.getC ......

java class file¼°·´»ã±àºóµÄjvmÖ¸Áî

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         --src
               --jvm
                    &nbs ......
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