JavaÖ®Override OverloadÖ®¼äµÄÇø±ð
overrideÊǸ²Ð´£¬¶ÔÓ¦ÓÚOO±à³ÌµÄ¼Ì³ÐÌØÐÔ£¬Òâ˼¾ÍÊÇÔÚ×ÓÀàÖÐÖØÐ´¸¸ÀàÖеķ½·¨£»
overloadÊÇÖØÔØ£¬¶ÔÓ¦ÓÚOO±à³ÌµÄ¶àÌ¬ÌØÐÔ£¬Òâ˼¾ÍÊÇÔÚͬһ¸öÀàÖÐͬÑùÃû³ÆµÄ¶à¸ö·½·¨£¬ Õâ¶à¸ö·½·¨Ö®¼äµÄÇø±ðÔÚËûÃǵIJÎÊýÁв»Í¬¡£
ÀýÈ磺
public interface UserDao {
public void save();
}
public class Override_Overload implements UserDao{
@Override
public void save() {
// TODO Auto-generated method stub
}
//ÒÔÏÂÈýÖз½¾ÍÊÇoverloadÊÇÖØÔØ
public int find(String name){
return 1;
}
public int find(String name,Long id){
return 1;
}
public int find(Long id){
return 1;
}
}
Ïà¹ØÎĵµ£º
³£¼ûµÄJAVA³ÌÐò°üÀ¨ÒÔÏÂÀà±ð£º
*Ö±½ÓÔÚconsoleÉÏÔËÐеÄÀà(°üÀ¨¿ÉÊÓ»¯½çÃæµÄÀà)
*JSP´úÂëÀࣨע£ºJSPÊÇServletsÀàµÄ±äÐÍ£©
*ServeletsÀà
*EJBÀà
*ÆäËü²»¿ÉÒÔÖ±½ÓÔËÐеÄÖ§³ÖÀà
ÕâЩÀàÎļþÖУ¬¶¼ÓпÉÄܺ¬ÓÐÖÐÎÄ×Ö·û´®£¬²¢ÇÒ³£ÓÃǰÈýÀàJAVA³ÌÐòºÍÓû§Ö±½Ó½»»¥£¬ÓÃÓÚÊä³öºÍÊäÈë×Ö·û£¬È磺ÔÚJSPºÍServletÖеõ½¿Í»§ ......
JAVA³ÌÐòÔ±ÃæÊÔ32ÎÊ
µÚÒ»£¬Ì¸Ì¸final, finally, finalizeµÄÇø±ð¡£
final ÐÞÊηû£¨¹Ø¼ü×Ö£©Èç¹ûÒ»¸öÀà±»ÉùÃ÷Ϊfinal£¬Òâζ×ÅËü²»ÄÜÔÙÅÉÉú³öеÄ×ÓÀ࣬²»ÄÜ×÷Ϊ¸¸Àà±»¼Ì³Ð¡£Òò´ËÒ»¸öÀ಻Äܼȱ»ÉùÃ÷Ϊ abstractµÄ£¬ÓÖ±»ÉùÃ÷ΪfinalµÄ¡£½«±äÁ¿»ò·½·¨ÉùÃ÷Ϊfinal£¬¿ÉÒÔ±£Ö¤ËüÃÇÔÚʹÓÃÖв»±»¸Ä±ä¡£±»ÉùÃ÷ΪfinalµÄ±äÁ¿±ØÐëÔÚÉù ......
Synchronized£¬¹ËÃû˼Ò壬´ú±í¶à¸öÏß³ÌÖ®¼äµÄͬ²½¡£ÄÇô£¬ÔÚjava±à³ÌÖÐÈçºÎʹÓÃËüÄØ£¿ ÎÒÃǼÙÉèÕâÑùÒ»¸öÇé¿ö£º¶ÔÓÚͬһ¸ö±äÁ¿synDemo£¬ÎÒÃÇ·Ö±ðÔÚ2¸ö²»Í¬µÄÏß³ÌÖе÷ÓÃsynDemo.synMethord1()ÓësynDemo.synMethord2()¡£ package com.cnblogs.gpcuster;
/**
*
* @author Aaron.Guo
*
*/
public class Tester { ......
LuceneÊÇÒ»¸ö»ùÓÚJavaµÄÈ«ÎÄË÷Òý¹¤¾ß°ü¡£
»ùÓÚJavaµÄÈ«ÎÄË÷ÒýÒýÇæLucene¼ò½é£º¹ØÓÚ×÷ÕߺÍLuceneµÄÀúÊ·
È«ÎļìË÷µÄʵÏÖ£ºLueneÈ«ÎÄË÷ÒýºÍÊý¾Ý¿âË÷ÒýµÄ±È½Ï
ÖÐÎÄÇзִʻúÖÆ¼ò½é£º»ùÓÚ´Ê¿âºÍ×Ô¶¯ÇзִÊËã·¨µÄ±È½Ï
¾ßÌåµÄ°²×°ºÍʹÓüò½é£ºÏµÍ³½á¹¹½éÉܺÍÑÝʾ
Hacking Lucene£º¼ò»¯µÄ²éѯ·ÖÎöÆ÷£¬É¾³ýµÄʵÏÖ£¬¶¨ÖƵÄÅÅÐò£ ......