Java´ò°ü³É¿ÉÖ´ÐÐÎļþ²½ÖèÏê½â
ºËÐÄ˼Ï룺°Ñº¬main·½·¨µÄÈë¿ÚÀàÌí¼Óµ½MANIFEST.MFÎļþÖС£
²½Ö裺
¼ÙÉèÓÐÁ½¸öÀàÎļþÒª´ò°ü£¬ËüÃÇ·Ö±ðÊôÓÚ²»Í¬µÄpackage¡£
package com.test.jar;
import java.awt.*;
import javax.swing.*;
public class Jar extends JFrame
{
public Jar()
{
Toolkit kit = Toolkit.getDefaultToolkit();
setIconImage(kit.getImage("img/ico.gif"));
setTitle("JarTest");
setSize(300, 200);
setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);
}
}
///////
package com.test.jar;
import java.awt.*;
import javax.swing.*;
public class Jar extends JFrame
{
public Jar()
{
Toolkit kit = Toolkit.getDefaultToolkit();
setIconImage(kit.getImage("img/ico.gif"));
setTitle("JarTest");
setSize(300, 200);
&nb
Ïà¹ØÎĵµ£º
ÒªÀí½â javaÖÐStringµÄÔË×÷·½Ê½£¬±ØÐëÃ÷È·Ò»µã£ºStringÊÇÒ»¸ö·Ç¿É±äÀࣨimmutable£©¡£Ê²Ã´ÊǷǿɱäÀàÄØ£¿¼òµ¥ËµÀ´£¬·Ç¿É±äÀàµÄʵÀýÊDz»Äܱ»Ð޸ĵģ¬Ã¿¸öʵÀýÖаüº¬µÄÐÅÏ¢¶¼±ØÐëÔÚ¸ÃʵÀý´´½¨µÄʱºò¾ÍÌṩ³öÀ´£¬²¢ÇÒÔÚ¶ÔÏóµÄÕû¸öÉú´æÖÜÆÚÄڹ̶¨²»±ä¡£javaΪʲôҪ°ÑStringÉè¼ÆÎª·Ç¿É±äÀàÄØ£¿Äã¿ÉÒÔÎÊÎÊ james Gosling £º£©¡£µ ......
JAVA´úÂë±àÒëºóÊÇ.classÎļþ,ͨ¹ý·´±à¹¤¾ßºÜÈÝÒ×±»±ðÈË¿´µ½Ô´´úÂë
±£»¤JAVA´úÂëµÄ·½·¨ºÜ¶à£¬ÏÂÃæ½éÉÜÒ»ÖֱȽϷ½±ãʹÓõķ½·¨¡£
obfuscate4eÊÇÒ»¿î²ÉÓûìÏýÆ÷¸Ä±äCLASSÎļþÄÚÈݵķ½·¨¡£
ÏÂÎĽ«½éÉܾßÌåºÍeclipseµÄÕûºÏ·½·¨
1.ÏÂÔØobfuscate4e,¼ÓÈëÕ¾µãhttp://obfuscate4e.org/updates/,Õâ¸öÈí¼þÊǵ¹úÈË¿ª· ......
Reflection ÊÇJava±»ÊÓΪ¶¯Ì¬£¨»ò×¼¶¯Ì¬£©ÓïÑÔµÄÒ»¸ö¹Ø¼üÐÔÖÊ¡£Õâ¸ö»úÖÆÔÊÐí³ÌÐòÔÚÔËÐÐʱ͸¹ýReflection APIsÈ¡µÃÈκÎÒ»¸öÒÑÖªÃû³ÆµÄclass
µÄÄÚ²¿ÐÅÏ¢£¬°üÀ¨Æämodifiers£¨ÖîÈçpublic, static µÈµÈ£©¡¢superclass£¨ÀýÈçObject£©¡¢ÊµÏÖÖ®interfaces£¨ÀýÈçCloneable£©£¬Ò²°üÀ¨fields
ºÍmethodsµÄËùÓÐÐÅÏ ......
Java ÖÐÀàºÍ·½·¨ÐÞÊηû
ÀàµÄÐÞÊÎ
·ÃÎÊÐÞÊηû ÐÞÊηû class ÀàÃû extends ¸¸ÀàÃû³Æ implements ½Ó¿ÚÃû³Æ£¨notes: ·ÃÎÊÐÞÊηû·ûÓëÐÞÊηûµÄλÖÿÉÒÔ»¥»»£©
·ÃÎÊÐÞÊηû
Ãû³Æ
˵Ã÷
±¸×¢
pubic
¿ÉÒÔ±»ËùÓÐÀà·ÃÎÊ(ʹÓÃ)
public Àà±ØÐ붨ÒåÔÚºÍÀàÃûÏàͬµÄͬÃûÎļþÖÐ
package
¿ÉÒÔ±»Í¬Ò»¸ö°üÖеÄÀà·ÃÎÊ(ʹÓÃ)
ĬÈϵķÃÎ ......
(1) transient:
Èç¹ûÓÃtransientÉùÃ÷Ò»¸öʵÀý±äÁ¿£¬µ±¶ÔÏó´æ´¢Ê±£¬ËüµÄÖµ²»ÐèҪά³Ö¡£ÀýÈ磺
class T
{
transient int a; //²»ÐèҪά³Ö
int b; //ÐèҪά³Ö
} //ÕâÀÈç¹ûTÀàµÄÒ»¸ö¶ÔÏóдÈëÒ»¸ö³Ö¾ÃµÄ´æ´¢ÇøÓò£¬aµ ......