java »ù´¡
1 import
2 package
3 ÐÞÊηû
4 ³éÏóÀà ½Ó¿Ú
5 static
6 StringÏà¹Ø
7 javadoc
8 Òì³£
9 ÈÕÆÚÏà¹Ø
10 ÊäÈëÊä³öÁ÷
11
Ò» import
importÓÃÓÚµ¼È벻ͬ°üÖеÄÀ࣬²»Í¬°üÖеÄÀàÃû¿ÉÒÔÏàͬ¡£
ÓÃ*ºÅÖ»Äܵ¼ÈëÒ»¸ö°ü£¬²»ÄÜʹÓà import java.* »òÕß java.*.*ÀàËÆµÄµ¼Èë¶à¸ö°ü¡£
µ¼ÈëµÄ²»Í¬µÄ°ü£¬º¬ÓÐÏàͬµÄÀàÃûʱ£¬»á±àÒë´íÎ󣬴ËʱÐèÒªÓðüÃûºÍÀàÃû½áºÏµÄ·½Ê½Î¨Ò»Ö¸¶¨Ò»¸öÀà¡£ÔÚc++ÖУ¬Óë°üÃûÀàËÆµÄÊÇ
namespace¡£using namespace std; import ****;
import ºÍincludeµÄÇø±ð£º
javaÖпÉÒÔͨ¹ýÔÚÀàÃûǰ¼Ó°üÃû£¬±ÜÃâʹÓÃimport ¶øc++ÖеÄ#include°ÑÍⲿÎļþ¼ÓÔØ½øÀ´£¬ÔÚ±àÒëµÄʱºò
¶þ package
package ÓÃÓÚÖ¸¶¨½«Àà·ÅÔÚÖ¸¶¨µÄ°üÖС£Èç package com.csdn.code ÔòÀàÔÚ°ü com.csdn.code °üÏ¡£
ÈôÊÇÒ»¸öÀàδָ¶¨public ºÍ private£¬ÔòÀàµÄ×÷ÓÃÓòÊǰü¿É¼û¡£
Èý ÐÞÊηû
private public protected.
1¡¢public£ºÊý¾Ý³ÉÔ±¡¢³ÉÔ±º¯Êý ¶ÔËùÓÐÓû§¿ª·ÅµÄ£¬ËùÓÐÓû§¶¼¿ÉÒÔÖ±½Ó½øÐе÷ÓÃ
2¡¢private£ºÊdzýÁËclass×Ô¼ºÖ®Í⣬ÈκÎÈ˶¼²»¿ÉÒÔÖ±½ÓʹÓÃ
3¡¢protected£º¶Ô×ÓÀà»òͬ°üµÄÀà¿É¼û¡£ÆäËû²»¿É¼û
×÷ÓÃÓò µ±Ç°Àà ͬһpackage ×ÓËïÀà ÆäËûpackage
public √ √ √ √
protected
Ïà¹ØÎĵµ£º
3.1 ¿çƽ̨ÈýάͼÐοª·¢¹¤¾ß°üJava 3D
¹Ù·½Ö÷Ò³£ºhttps://java3d.dev.java.net/
Java 3DÑϸñ×ñÑ“½¨Ä££»æÖÆ”·ºÐÍ¡£³¡¾°Í¼£¨scene graph£©µÄ ³éÏóÄ£Ðͱ»ÓÃÀ´×éÖ¯ºÍά»¤ÐéÄⳡ¾°ÖеĿÉÊǶÔÏó¼°ÆäÐÐΪ¡£³¡¾°Í¼°üº¬ÁËÐéÄâͼÐÎÊÀ½çµÄÈ«²¿ÐÅÏ¢£¬Java 3D»æ ÖÆÒýÇæ»á¶Ô³¡¾°Í¼½øÐÐ×Ô¶¯»æÖÆ¡£
Java 3D is a scene g ......
1. ʼÖÕʹÓà MVC ¿ò¼Ü¡£
½«ÒµÎñÂß¼£¨Java Bean ºÍ EJB ×é¼þ£©´Ó¿ØÖÆÆ÷Âß¼£¨Servlet/Struts ²Ù×÷£©ºÍ±íʾÂß¼£¨JSP¡¢XML/XSLT£©ÖÐÇåÎúµØ·ÖÀë³öÀ´¡£Á¼ºÃµÄ·Ö²ã¿ÉÒÔ´øÀ´Ðí¶àºÃ´¦¡£
×¢:¶ÔÓÚһЩСÐ͵ĻòÕßÒµÎñÏà¶Ô¼òµ¥µÄϵͳ¶øÑÔ,Óÿò¼Ü¿ª·¢²¢²»ÄÜ´øÀ´ÈκÎÐ§Òæ,²¢ÇÒÎÒÉîÐÅÔÚһЩÏîÄ¿¿ª·¢ÖÐ,ÌØ±ðÊǽö½öÓÉij¸öÈ˶ÀÁ ......
ÔÚFirefox 3.6ÖУ¬µ±½¹µãÔÚflash»òÕßjava applet¶ÔÏóÉÏʱ£¬»á³öÏÖÒ»¸ö»·ÈƶÔÏóµÄÐéÏß¿ò£¬µ±½«flashÓëjava applet¶ÔÏóµÄ´óСÉè³É100%ʱ£¬µã»÷¶ÔÏóºóÒ³Ãæ»á³öÏÖ¹ö¶¯Ìõ£¬Ó°ÏìÏÔʾЧ¹û£¬½â¾öµÄ·½·¨ÊÇʹÓÃÈçϵÄcss¶¨Ò壺
:focus {
outline: 0;
}
ÕâÑùÔÚ¸÷¸ö²»Í¬µÄä¯ÀÀÆ÷ÖÐÏÔʾµÄЧ¹û¶¼Äܱ£³ÖÒ»Ö¡£ ......
KeywordFilter.java:
import java.io.InputStream;
import java.util.Enumeration;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class KeywordFilter
{
private static Pattern pattern = null;
private static KeywordFilter filter = new KeywordF ......
£¨
1
£©
+=
:sum += 1;
Ï൱ÓÚ
sum = sum + 1;
£¨
2
£©
++ --
:i++ i
¼Ó
1, i-- i
¼õ
1, ++
»ò
—
·ÅÔÚÊýÖµºó£¬±íʾִÐÐÔËËãºó¼Ó£¨¼õ£©
1
£¬·´ÕýÊýֵǰ±íʾִÐÐÔËËãǰ¼Ó£¨¼õ£©
1
£¨
3
£©
?
: :
int n = a<10?1:2
±íʾÈç¹û
a
СÓÚ
10
Ôò
n
µÈÓÚ
1
·ñÔòµÈÓÚ
2
£¨
4
......