Éú³Émyeclipse×¢²áÂëµÄjava³ÌÐò´úÂë
½ñÍíÔÚ¹äCSDNµÄʱºò·¢ÏÖÁË£¬ÓÐÈËÓÃjavaдÁËÉú³Émyeclipse×¢²áÂëµÄ´úÂ룬ËùÒԾͳ¼ÁËÏÂÀ´¡£ o(∩_∩)o ¹þ¹þ
package gggg;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class MyEclipseGen {
private static final String LL = "Decompiling this copyrighted software is a violation of both your license agreement and the Digital Millenium Copyright Act of 1998 (http://www.loc.gov/copyright/legislation/dmca.pdf). Under section 1204 of the DMCA, penalties range up to a $500,000 fine or up to five years imprisonment for a first offense. Think about it; pay for a license, avoid prosecution, and feel better about yourself.";
public String getSerial(String userId, String licenseNum) {
java.util.Calendar cal = java.util.Calendar.getInstance();
cal.add(1, 3);
cal.add(6, -1);
java.text.NumberFormat nf = new java.text.DecimalFormat("000");
licenseNum = nf.format(Integer.valueOf(licenseNum));
String verTime = new StringBuilder("-").append(
new java.text.SimpleDateFormat("yyMMdd").format(cal.getTime()))
.append("0").toString();
String type = "YE3MP-";
String need = new StringBuilder(userId.substring(0, 1)).append(type)
.append("300").append(licenseNum).append(verTime).toString();
String dx = new StringBuilder(need).append(LL).append(userId)
.toString();
int suf = this.decode(dx);
String code = new StringBuilder(need).append(String.valueOf(suf))
.toString();
return this.change(code);
}
private int decode(String s) {
int i;
char[] ac;
int j;
int k;
i = 0;
ac = s.toCharArray();
j = 0;
k = ac.length;
while (j < k) {
i = (31 * i) + ac[j];
j++;
}
return Math.abs(i);
}
private String change(String s) {
byte[] abyte0;
char[] ac;
int i;
int k;
int j;
abyte0 = s.getBytes();
ac = new char[s.length()];
i = 0;
k = abyte0.length;
Ïà¹ØÎĵµ£º
´Ó±¾ÏµÁÐÇ°ÃæµÄÎÄÕÂÖУ¬ÄúÁ˽⵽·´ÉäµÄÐÔÄܱÈÖ±½Ó·ÃÎÊÒªÂýÐí¶à±¶£¬²¢Á˽âÁËÓà Javassist ºÍ Apache
Byte Code Engineering Library £¨BCEL£©½øÐÐclassworking¡£Java ¹ËÎÊ Dennis
Sosnoski ͨ¹ýÑÝʾÈçºÎʹÓÃÔËÐÐʱ classworking£¬À´ÓÃÈ«ËÙǰ½øµÄÉú³É´úÂëÈ¡´ú·´Éä´úÂ룬´Ó¶ø½áÊøËûµÄ Java ±à³ÌµÄ¶¯Ì¬ÐÔ
ϵÁС£
¼ÈÈ»ÄúÒѾ ......
ÔÚ¾¹ýÒ»¶Îʱ¼äµÄÐÝÏ¢Ö®ºó£¬Dennis Sosnoski ÓÖ»ØÀ´ÍƳöÁËËûµÄ
Java ±à³ÌµÄ¶¯Ì¬ÐÔ
ϵ
ÁÐµÄµÚ 5 ²¿·Ö¡£ÄúÒÑÔÚÇ°ÃæµÄÎÄÕÂÖп´µ½ÁËÈçºÎ±àдÓÃÓÚת»» Java ÀàÎļþÒԸıä´úÂëÐÐΪµÄ³ÌÐò¡£ÔÚ±¾ÆÚÖУ¬Dennis½«Õ¹Ê¾ÈçºÎʹÓÃ
Javassist
¿ò¼Ü£¬°Ñת»»Óëʵ¼ÊµÄÀà¼ÓÔØ¹ý³Ì½áºÏÆðÀ´£¬ÓÃÒÔ½øÐÐÁé»îµÄ“¼´Ê±”ÃæÏò·½Ã ......
Java×¢Ê͹淶
¶¨ÒåÕâ¸ö¹æ·¶µÄÄ¿µÄÊÇÈÃÏîÄ¿ÖÐËùÓеÄÎĵµ¶¼¿´ÆðÀ´ÏñÒ»¸öÈËдµÄ£¬Ôö¼Ó¿É¶ÁÐÔ£¬¼õÉÙÏîÄ¿×éÖÐÒòΪ»»È˶ø´øÀ´µÄËðʧ¡££¨ÕâЩ¹æ·¶²¢²»ÊÇÒ»¶¨Òª¾ø¶Ô×ñÊØ£¬µ«ÊÇÒ»¶¨ÒªÈóÌÐòÓÐÁ¼ºÃµÄ¿É¶ÁÐÔ£©¡£
Java µÄÓï·¨Óë C++ ¼°ÎªÏàËÆ£¬ÄÇô£¬ÄãÖªµÀ Java µÄ×¢ÊÍÓм¸ÖÖÂð£¿ÊÇÁ½ÖÖ£¿ ¡¡¡¡
// ×¢ÊÍÒ»ÐС¡¡¡
/* ...... */ ×¢Ê ......
ÔÚJDK1.5֮ǰ£¬¶Ô¸ßÖÊÁ¿Java¶àÏ̲߳¢·¢³ÌÐòÉè¼ÆÊ±£¬Îª·ÀÖ¹³ÌÐò±ÀµôµÈÏÖÏóµÄ³öÏÖ£¬±ÈÈçʹÓÃwait()¡¢notify()ºÍsynchronizedµÈ£¬ÐèÒª¿¼ÂÇÐÔÄÜ¡¢ËÀËø¡¢¹«Æ½ÐÔ¡¢×ÊÔ´¹ÜÀíÒÔ¼°ÈçºÎ±ÜÃâḬ̈߳²È«ÐÔ·½Ãæ´øÀ´µÄΣº¦µÈÖî¶àÒòËØ£¬Í¨³£»á²ÉÓÃһЩ½ÏΪ¸´Ôӵݲȫ²ßÂÔ£¬¼ÓÖØÁ˳ÌÐòÔ±µÄ¿ª·¢¸ºµ£¡£ÔÚJ ......