java»·¾³±äÁ¿ÅäÖÃ
windows xpÏÂÅäÖÃJDK»·¾³±äÁ¿£º
1.°²×°JDK£¬°²×°¹ý³ÌÖпÉÒÔ×Ô¶¨Ò尲װĿ¼µÈÐÅÏ¢£¬ÀýÈçÎÒÃÇÑ¡Ôñ°²×°Ä¿Â¼ÎªD:\java\jdk1.5.0_08£» 2.°²×°Íê³Éºó£¬ÓÒ»÷¡°ÎҵĵçÄÔ¡±£¬µã»÷¡°ÊôÐÔ¡±£» 3.Ñ¡Ôñ¡°¸ß¼¶¡±Ñ¡Ï£¬µã»÷¡°»·¾³±äÁ¿¡±£» 4.ÔÚ¡°ÏµÍ³±äÁ¿¡±ÖУ¬ÉèÖÃ3ÏîÊôÐÔ£¬JAVA_HOME,PATH,CLASSPATH(´óСдÎÞËùν),ÈôÒÑ´æÔÚÔòµã»÷¡°±à¼¡±£¬²»´æÔÚÔòµã»÷¡°Ð½¨¡±£» 5.JAVA_HOMEÖ¸Ã÷JDK°²×°Â·¾¶£¬¾ÍÊǸղŰ²×°Ê±ËùÑ¡ÔñµÄ·¾¶D:\java\jdk1.5.0_08£¬´Ë·¾¶Ï°üÀ¨lib£¬bin£¬jreµÈÎļþ¼Ð£¨´Ë±äÁ¿×îºÃÉèÖã¬ÒòΪÒÔºóÔËÐÐtomcat£¬eclipseµÈ¶¼ÐèÒªÒÀ*´Ë±äÁ¿£©£»
PathʹµÃϵͳ¿ÉÒÔÔÚÈκη¾¶ÏÂʶ±ðjavaÃüÁÉèΪ£º %JAVA_HOME%\bin;%JAVA_HOME%\jre\bin CLASSPATHΪjava¼ÓÔØÀà(class or lib)·¾¶£¬Ö»ÓÐÀàÔÚclasspathÖУ¬javaÃüÁî²ÅÄÜʶ±ð£¬ÉèΪ£º .;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar (Òª¼Ó.±íʾµ±Ç°Â·¾¶) %JAVA_HOME%¾ÍÊÇÒýÓÃÇ°ÃæÖ¸¶¨µÄJAVA_HOME£» 6.¡°¿ªÊ¼¡±£>;¡°ÔËÐС±£¬¼üÈë¡°cmd¡±£» 7.¼üÈëÃüÁî¡°java -version¡±£¬¡°java¡±£¬¡°javac¡±¼¸¸öÃüÁ³öÏÖ»Ã棬˵Ã÷»·¾³±äÁ¿ÅäÖóɹ¦£» 8.ºÃÁË£¬´òÍêÊÕ¹¤¡£ÏÂÃ濪ʼÄãµÄµÚÒ»¸öjava³ÌÐò°É¡£ ÏÂÃæ½²½²java¼¸¸ö»·¾³±äÁ¿µÄº¬ÒåºÍlinuxϵÄÅäÖ÷½·¨£º ͨ³££¬ÎÒÃÇÐèÒªÉèÖÃÈý¸ö»·¾³±äÁ¿£ºJAVA_HOME¡¢PATH ºÍ CLASSPATH¡£ JAVA_HOME£º¸Ã»·¾³±äÁ¿µÄÖµ¾ÍÊÇ Java ËùÔÚµÄĿ¼£¬Ò»Ð© Java °æµÄÈí¼þºÍһЩ Java µÄ¹¤¾ßÐèÒªÓõ½¸Ã±äÁ¿£¬ÉèÖà PATH ºÍ CLASSPATH µÄʱºò£¬Ò²
Ïà¹ØÎĵµ£º
package com.event;
import java.util.Map;
public interface EventListener {
void onEvent(Map event);
}
package com.socket;
import java.nio.ByteBuffer;
import java.util.HashMap;
import com.event.EventListener;
/*
* Ô¤´¦ÀíÀà
*/
public class BaseObject {
private boole ......
ËùÓйؼü×Ö¶¼ÊÇСдµÄ ×ÖĸÏ»®ÏßÒ»¶¨ÔÚÇ°Ãæ¡£Êý×Ö¿ªÍ·µÄ±êʶ·ûÊÇ·Ç·¨µÄ¡£²»ÄÜÓпոñ¡£Ö®¼ä²»ÄÜÓÐÔËËã·û ±êʶ·û Çø·Ö´óСд
ÀýÈ磺abcºÍAbcÊÇÁ½¸ö²»Í¬µÄ±êʶ·û ±êʶ·û²»ÄÜÊǹؼü×Ö Èç¹û±êʶ·ûÓɶà¸öµ¥´Ê¹¹³É£¬ÄÇô´ÓµÚ¶þ¸öµ¥´Ê¿ªÊ¼£¬Ê××Öĸ´óд
ʾÀý£ºisText ¡¢ canRunTheCar µÈ ¾¡Á¿ÉÙÓôø$·ûºÅµÄ±êʶ· ......
1¡¢ÔÚÊý¾Ý¿â½¨±íµÄʱºò×Ö¶ÎÖ±½ÓÉèÖÃΪDATETIMEÀàÐÍ£»
2¡¢Ö´ÐвåÈëµÄʱºòʹÓÃÈçÏÂÓï¾ä£º
PreparedStatement pstmt = conn.prepareStatement("insert into guestbook(gst_user,gst_title,gst_content,gst_ip,gst_time) values(?,?,?,?,getdate())");
3¡¢Òª°ÑÈÕÆÚ´ÓÊý¾Ý¿âÖÐÈ¡³ö£¬Ö´ÐÐÈçÏÂÓï¾ä£º
......
ÓÃJavaÁ¬½ÓSQL Server2000Êý¾Ý¿âÓжàÖÖ·½·¨£¬ÏÂÃæ½éÉÜÆäÖÐ×î³£ÓõÄÁ½ÖÖ£¨Í¨¹ýJDBCÇý¶¯Á¬½ÓÊý¾Ý¿â£©¡£
1. ͨ¹ýMicrosoftµÄJDBCÇý¶¯Á¬½Ó¡£´ËJDBCÇý¶¯¹²ÓÐÈý¸öÎļþ£¬·Ö±ðÊÇmssqlserver.jar¡¢msutil.jarºÍmsbase.jar£¬¿ÉÒÔµ½Î¢ÈíµÄÍøվȥÏÂÔØ£¨http://www.microsoft.com/downloads/details.aspx?FamilyId=07287B11-0502-461A- ......
1.OOPÖÐΨһ¹ØϵµÄÊǶÔÏóµÄ½Ó¿ÚÊÇʲô£¬¾ÍÏñ¼ÆËã»úµÄÏúÊÛÉÌËý²»¹ÜµçÔ´ÄÚ²¿½á¹¹ÊÇÔõÑùµÄ£¬ËûÖ»¹ØϵÄÜ·ñ¸øÄãÌṩµç¾ÍÐÐÁË£¬Ò²¾ÍÊÇÖ»ÒªÖªµÀcan or not¶ø²»ÊÇhow and why.ËùÓеijÌÐòÊÇÓÉÒ»¶¨µÄÊôÐÔºÍÐÐΪ¶ÔÏó×é³ÉµÄ£¬²»Í¬µÄ¶ÔÏóµÄ·ÃÎÊͨ¹ýº¯Êýµ÷ÓÃÀ´Íê³É£¬¶ÔÏó¼äËùÓеĽ»Á÷¶¼ÊÇͨ¹ý·½·¨µ÷Óã¬Í¨¹ý¶Ô·â×°¶ÔÏóÊý¾Ý£¬ºÜ´óÏÞ¶ÈÉÏÌḠ......