java£ºdoubleÀàÐͽØÈ¡Á©Î»Ð¡Êý£¬²»È¡Éᣬ
public class Split{
public static void main(String[] args){
double pai = 3.14159;
findTwo(pai);
public static void findTwo(double value){
System.out.println(new DecimalFormat("0.##").format(value));
}
}
}
Ïà¹ØÎĵµ£º
Ò»¡¢ÀûÓÃjdk web·þÎñapiʵÏÖ£¬ÕâÀïʹÓûùÓÚ SOAP message µÄ Web ·þÎñ
¡¡¡¡1.Ê×ÏȽ¨Á¢Ò»¸öWeb services EndPoint£º
¡¡¡¡Java´úÂë
¡¡¡¡package Hello;
¡¡¡¡import javax.jws.WebService;
¡¡¡¡import javax.jws.WebMethod;
¡¡¡¡import javax.xml.ws.Endpoint;
¡¡¡¡@WebService
¡¡¡¡public class Hello {
¡¡¡¡@WebMet ......
java Á¬½Ó sql 2005 µÄ·½·¨£º
1¡£µ½Î¢Èí¹Ù·½ÍøÕ¾ÏÂÔØ2005µÄjdbc²¢½âѹ£¬»ñµÃÎļþsqljdbc.jar
2¡£¸´ÖÆÎļþsqljdbc.jarµ½jdkĿ¼\jdk1.5\jre\lib\extÏ¡£
3¡£¿ªÊ¼-¡µ³ÌÐò-¡µsql server 2005-¡µÅäÖù¤¾ß-¡µSQL Server Configuration Manager¡£Æô¶¯sql 2005·þÎñ¡£
µã»÷ sql server2005ÍøÂçÅäÖýڵ㣬²¢Ñ¡ÖÐ&rd ......
¹«Ë¾Óõ½´®¿Ú±à³Ì£¬¹Ê¿ªÊ¼Ñо¿£¬Ê×ÏÈËѵ½µÄÊÇjavacomm20-win32.zipÕâ¸öѹËõ°ü£¬°´ÕÕÍøÉϵݲװÅäÖúã¬ÈçÏ£º
API
ÔÚjavax.commÏÂÓÐ13¸öÀàºÍ½Ó¿Ú£¬·Ö±ðÊÇ
4¸ö½Ó¿Ú
CommDriver ¿É¸ºÔØÉ豸£¨the loadable device£©Çý¶¯³ ......
1. javaÓëÆ½Ì¨Î޹ء£Ô´´úÂëÓɱàÒëÆ÷±àÒëΪ×Ö½ÚÂ루JVM¿ÉÖ´ÐдúÂ룩£»½âÊÍÆ÷ÔËÐÐJVM×Ö½ÚÂ루·ÒëΪ»úÆ÷Â룩¼´¿ÉµÃµ½Êä³ö½á¹û¡£
×Ö½ÚÂë¿ÉÔÚ¶à¸öƽ̨ÔËÐУ¬²»ÐèÒªÖØÐ±àÒë¡£
c±àÒëÆ÷ÔÚ±àÒëʱÉú³ÉµÄ´úÂëÊÇÕë¶ÔÌØ¶¨µÄÓ²¼þƽ̨²úÉúµÄ¡£
2. java¿ª·¢¹¤¾ßJDK¡£°²×°JDKʱ×Ô´øjre£¬¾ÍÊÇjavaÐéÄâ»ú¡£
jdkÊÇJava¿ª·¢¹¤¾ß°ü£¬°üº¬Á˸ ......
¼øÓÚÍøÉÏËѵ½µÄ¶¼ÊÇ»ùÓÚjdk1.4»òÒÔǰ°æ±¾£¬¶øÇÒ±¾µØ¿âÓõÄÊÇCÓïÑÔ¡£¶øÏÖÔÚÊÇ»ùÓÚC++£¬ËùÒÔ¸üмǼÈçÏ£º
µÚÒ»²½£º´´½¨JavaÔ´ÂëÎļþ
public class Hello{
static{
System.loa ......