package com;
public class Main {
?/**
? * @param args
? */
?private static final String L = "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 static void main(String[] args) {
??String userId = "zwm";
??// MyEclipse4.1 GA
??// 其中491(4.9.1)/400(4.0)/401(4.1)/501(5.1.0)，()內為版本號，9912310代表注冊碼過期時間2099/12/31
??String need = userId.substring(0, 1) + "YE3MP-401-00-9912310";
??// MyEclipse4.0.0 GA
??// String need = userId.substring(0,1) + "YE3MP-400-01-9912310";
??// MyEclipse4.9.1
??// String need = userId.substring(0,1) + "YE3MP-491-01-9912310";
??// MyEclipse5.1.0 GA
??// String need = userId.substring(0,1) + "YE3MP-501-00-9912310";
??String dx = need + L + userId;
??int suf = decode(dx);
??// System.out.println("SUF:"+suf);
??String code = need + suf;
??System.out.println(change(code));
?}
?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);
?}
?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);
?}
}