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//´òÓ¡³ömess±íµÄÁÐÊýÊǶàÉÙ
public static void main(String[] args){
  String sql="select count(*) from mess";
  ResultSet set=null;
  try {
   Object paramValues[] = new Object[0];
         set = DBUtil.preExecuteSelect(sql, paramValues);   
   while(set.next()){
    System.out.println(£¿£¿£¿£¿);//   ÕâÀïÓ¦¸ÃÈçºÎÐ´ÄØ 
   }
  } catch (SQLException e) {
   e.printStackTrace();
  }  
 }


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1.Ô­ÐÍÊý¾Ýbyte,short,int,long,float,double,char,boolean,СÀàÐÍÊý¾Ý¿ÉÒÔÖ±½Ó¸³¸ø´óÀàÐÍÊý¾ÝÀýÈç
 int a=1;byte b=2;short c=3;float d=3;double e=4;char f='a';boolean g=true;long l=10;
c=b;
a=f;
d=a;
e=d;
byteÐÍÊý¾Ý²»ÄÜÖ±½Ó¸³¸øcharÐÍÊý¾Ý£¬ÒòΪbyte±íʾµÄÊÇ8λÓзûºÅÊý£¬¶øchar±íʾµ ......

javaµ÷Óô洢¹ý³Ì

//µ÷Óô洢¹ý³Ì´ø²Î
            CallableStatement ca = conn.prepareCall("{call Login (?,?)}");
            ca.setString(1,username);
         & ......

java»Øµ÷»úÖÆ¼°HibernateÖеÄHibernateTemplateʵÏÖ

   ̸̸»Øµ÷°É£¬ÒÔǰѧjavaµÄʱºò¾ÓȻû½Ó´¥µ½Õâ¸ö´Ê»ã£¬º¹£¬×î½üÑо¿hibernateºÍspring½áºÏʱ£¬·¢ÏÖspringʵÏÖhibernateʱӦÓÃÁ˻ص÷»úÖÆ£¬ÓÚÊÇgoogleÁ˺ܶà´Î£¬ÖÕÓÚÓÐËùÌå»áÁË£¬ÏÖÔÚ×öÏÂССµÄ×ܽᣬÒÔ±ã¼ÓÉîÓ¡Ïó£¡
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 ÔÚJava AplicationÖÐʵÏֵļòÒײ¥·ÅÆ÷¡£À´Ô´ÓÚºúÇɶàÖ÷±àµÄ¡¶Java³ÌÐòÉè¼Æ°¸Àý½Ì³Ì¡·
ÎÒÊÔÔËÐйýÁË£¬ÆäÖÐµÄ “Ìýº£.wav”,“Ò»¶¨Òª°®Äã.wav”ÒôƵÎļþÒª·ÅÔÚclassËùÔÚµÄÎļþ¼ÐÖУ¬ÇÒÖ»Ö§³Öwav¸ñʽ
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import java.applet.Applet;
import java.applet.AudioClip;
import javax.swing.* ......

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8.2 ThreadÀàºÍRunnable½Ó13
8.2.1 ThreadÀà
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