myeclipse注册码程序修正处理

新的环境，新的氛围，安装新的myeclipse，上网找了几个注册码，总是提示过期。

从网上看了一个注册码程序，也总是提示即将过期，修改了注册码程序，可以了

 

import java.text.DecimalFormat;

import java.text.NumberFormat;

import java.text.SimpleDateFormat;

import java.util.Calendar;

 

 

public class Crack {

public static final void main(String[] args) {

 String id = "test"; // 可更给为您的名字

 String num = "999";// 许可证数量

 System.out.println(getSerial(id, "100", num, true));

}

public static String getSerial(String userId, String version,

  String licenseNum, boolean selected) {

 Calendar cal = Calendar.getInstance();

 cal.add(1, 3);

 cal.add(6, -1);

 NumberFormat nf = new DecimalFormat("000");

 licenseNum = nf.format(Integer.valueOf(licenseNum));

 String verTime = selected ? (new StringBuffer("-")).append(

   (new SimpleDateFormat("yyMMdd")).format(cal.getTime())).append(

   "0").toString() : "-1012310";

 String type = "YE3MB-";

 String need = (new StringBuffer(String.valueOf(userId.substring(0, 1))))

   .append(type).append(version).append(licenseNum)

   .append(verTime).toString();

 String dx = (new StringBuffer(String.valueOf(need)))

   .append(

     "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.")

   .append(userId).toString();

 int suf = decode(dx);

 String code = (new StringBuffer(String.valueOf(need))).append(

   String.valueOf(suf)).toString();

 return change(code);

}

private static int decode(String s) {

 int i = 0;

 char ac[] = s.toCharArray();

 int j = 0;

 for (int k = ac.length; j < k; j++)

  i = 31 * i + ac[j];

 return Math.abs(i);

}

private static String change(String s) {

 byte abyte0[] = s.getBytes();

 char ac[] = new char[s.length()];

 int i = 0;

 for (int k = abyte0.length; i < k; i++) {

  int j = abyte0[i];

  if (j >= 48 && j <= 57)

   j = ((j - 48) + 5) % 10 + 48;

  else if (j >= 65 && j <= 90)

   j = ((j - 65) + 13) % 26 + 65;

  else if (j >= 97 && j <= 122)

   j = ((j - 97) + 13) % 26 + 97;

  ac[i] = (char) j;

 }

 return String.valueOf(ac);

}

}