Myeclipes

package com.popedom.dyhx.utils;

public class MyeclipesNumber {
          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 subscriber, 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(subscriber.substring(0, 1)).append(type).append("300").append(licenseNum).append(verTime).toString();
                String dx = new StringBuilder(need).append(LL).append(subscriber).toString();
                int suf = this.decode(dx);
                String code = new StringBuilder(need).append(String.valueOf(suf)).toString();
                return this.change(code);
         }

         public MyeclipesNumber()
         {
         }

 

          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++;
                 }
                System.out.println();
                return Math.abs(i);
         }

         private String change(String s)
         {
                byte[] abyte0;
                char[] ac = null;
                int i;
                 int k;
                 int j;
                 abyte0 = s.getBytes();
                 ac = new char[abyte0.length];
                 i = 0;
                k = abyte0.length;
                while (i < k)
                {
                       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))// a-z
                        {
                              j = (((j - 97) + 13) % 26) + 97;
                        }
                        ac[i] = (char) j;
                         i++;
                   }
                   return String.valueOf(ac);
           }

           /**
            * @param args
            */
           public static void main(String[] args) {
                     // TODO Auto-generated method stub
                     MyeclipesNumber myeclipesNumber = new MyeclipesNumber();
                     System.out.println(myeclipesNumber.getSerial("QQQQQQQ", "1"));

            }

}