javaС¼¼ÇÉ£¨Ò»£©
ÔںܶàÊý¾Ý¿âÖУ¬“ÐÔ±ð”ÕâÒ»×Ö¶ÎÊÇÓÃÓÚintÀàÐÍ´æ´¢µÄ£¬ÈçÓÃ0±íʾ“Å®”£¬1±íʾ“ÄД¡£Ê¹ÓÃResultSet¶ÔÏórs½ÓÊÕ²éѯÊý¾Ý£¬ÔÚ»ñÈ¡Êý¾Ýʱʱ£¬rs.getString()·½·¨ºÍrs.getInt()·½·¨»ñÈ¡µÄÈÔÈ»ÊÇ0(Çø±ðÔÚÓÚStringÀàÐÍ»òÊÇintÀàÐÍ)¡£¶øÔÚʵ¼ÊÓ¦ÓÃʱ£¬ÎÒÃǸüÏ£Íû»ñµÃµÄÊý¾ÝÊÇÖ±¹ÛµØÏÔʾ“ÄД»ò“Å®”£¬ÓÐûÓÐʲô°ì·¨ÄØ£¿
ÓÐÈËÁ¢¿ÌÏë³ö£ºÊ¹ÓÃif-elseÓï¾ä¿ØÖÆ£¬»òÕßʹÓÃÈýÔªÔËËã·û¸³Öµ°¡£¡¿ÉÎÊÌâÓÖ³öÏÖÁË£¬ÕâÑù×öµÄ»°ÎÒÃÇÐèÒª¶¨ÒåÒ»¸ö¶îÍâµÄ±äÁ¿£¬¶øÇÒ¼ÙÈçÎÒÃÇÓжà¸öJSPÒ³ÃæÐèÒªÏÔʾÐÔ±ðµÄʱºòÒª¶àдºÜ¶à¶«Î÷¡£ÄѵÀ¶¨Òå³ÉÒ»¸ö·½·¨£¬Ã¿¸öÒ³Ãæ¶¼µ÷Ó÷½·¨ÔÙת»»Âð£¿My God£¡
»¹ÊÇ¿´¿´ÏÂÃæµÄ·½·¨°É¡£
ÔÚʵÌåÀàÖж¨Òå˽ÓÐÊôÐÔ²¢·â×°£º
ĬÈÏ·½·¨£º
package test;
public class User {
private int sex;
public int getSex() {
return sex;
}
public void setSex(int sex) {
this.sex= sex;
}
}
»¹ÊǸÄΪÏÂÃæµÄ·½·¨°É£º
package test;
public class User {
private int sex;
public String getSex() {
if(sex==0){
return "Å®";
}else{
return "ÄÐ";
}
}
public void setSex(int sex) {
this.sex = sex;
}
}
´ó¼ÒÓ¦¸Ã¶¼¿´Ã÷°×ÁË£¬Ö»Êǽ«sexµÄgetSex()·½·¨µÄ·µ»ØÀàÐ͸ÄΪStringÀàÐÍ£¬²¢ÇÒÔÚ·½·¨ÖÐ×öÁ˼òµ¥µÄ¸³Öµ£¬ÎÒÃǵÄÄ¿µÄ¾ÍʵÏÖÁË£¡
×ö¸ö¼òµ¥µÄ²âÊÔ°É£º
package test;
public class Test {
public static void main(String[] args) {
User user=new User();
user.setSex(0);
System.out.println(user.getSex());
}
}
Êä³ö½á¹û¾ÍÊǓŮ”À²£¬Èç¹ûsetSex(1)µÄ»°£¬Êä³ö×ÔÈ»ÊÇ“ÄД¿©£¡
µ±È»£¬ÎªÁ˳ÌÐòµÄÑÏÃÜÐÔ£¬»¹ÊÇÓ¦¸Ã½«·½·¨Ð´µÄ¸üϸÖÂһЩ£º
package test;
public class User {
private int sex;
public String getSex() {
if(sex==0){
return "Å®";
}else if(sex==1){
ret
Ïà¹ØÎĵµ£º
1.¼ÆËãijһÔ·ݵÄ×î´óÌìÊý
1Calendar time=Calendar.getInstance();
2time.clear();
3time.set(Calendar.YEAR,year); //year Ϊ int
4time.set(Calendar.MONTH,i-1);//×¢Òâ,Calendar¶ÔÏóĬÈÏÒ»ÔÂΪ0
5int day=time.getActualMaximum(Calendar.DAY_OF_MONTH);//±¾Ô·ݵÄÌìÊý
×¢£ºÔÚʹÓÃset·½·¨Ö®Ç°£¬±ØÐë ......
JavaѧϰµÄ30¸öÄ¿±ê
1. ÄãÐèÒª¾«Í¨ÃæÏò¶ÔÏó·ÖÎöÓëÉè¼Æ(OOA/OOD)¡¢É漰ģʽ(GOF£¬J2EEDP)ÒÔ¼°×ÛºÏģʽ¡£ÄãÓ¦¸ÃÊ®·ÖÁ˽âUML£¬ÓÈÆäÊÇclass£¬object£¬interactionÒÔ¼°statediagrams¡£
2. ÄãÐèҪѧϰJAVAÓïÑԵĻù´¡ÖªÊ¶ÒÔ¼°ËüµÄºËÐÄÀà¿â(collections£¬serialization£¬streams£¬networking£¬ multithreading£¬reflection£ ......
Java ƽ̨ÓÐÈý¸ö°æ±¾£¬ÕâʹÈí¼þ¿ª·¢ÈËÔ±¡¢·þÎñÌṩÉ̺ÍÉ豸Éú²úÉÌ¿ÉÒÔÕë¶ÔÌØ¶¨µÄÊг¡½øÐпª·¢£º
* Java SE£¨Java Platform£¬Standard Edition£©¡£Java SE ÒÔǰ³ÆÎª J2SE¡£ËüÔÊÐí¿ª·¢ºÍ²¿ÊðÔÚ×ÀÃæ¡¢·þÎñÆ÷¡¢Ç¶Èëʽ»·¾³ºÍʵʱ»·¾³ÖÐʹÓÃµÄ Java Ó¦ÓóÌÐò¡£Java SE °üº¬ÁËÖ§³Ö Java Web ·þÎñ¿ª·¢µÄÀ࣬²¢Î ......
JAVA/JSPÀà±ÏÒµÉè¼Æ
ÈôÓкÏÊÊÄúµÄÉè¼Æ£¬Çë¸æËßÎÒÏêϸ˵Ã÷µÄÍøÖ·£¡Ð»Ð»ºÏ×÷£¡
±àºÅ ÌâÄ¿ ¿ª·¢¹¤¾ß ÄÚÈÝ ×ÊÁÏ·Ñ Ïêϸ˵Ã÷
001JVSQL °ì¹«×Ô¶¯»¯ÏµÍ³ JAVA JAVAÔ´´úÂë+±ÏÒµÂÛÎÄ+¿ªÌⱨ¸æ+´ð±ç¸å £¤180 Ïêϸ˵Ã÷
002JVAC ѧÉúÐÅÏ¢¹ÜÀíϵͳ JAVA JAVAÔ´´úÂë+±ÏÒµÂÛÎÄ+¿ªÌⱨ¸æ+´ð±ç¸å £¤180 Ïêϸ˵Ã÷
004JVAC ͼÊé¹Ý¹ÜÀí ......