激活MyEclipse 6.5方法-通过一段Java程序生成激活码

             1
            import
             java.text.DecimalFormat;

             2
            import
             java.text.NumberFormat;

             3
            import
             java.text.SimpleDateFormat;

             4
            import
             java.util.Calendar;

             5
             6
            public
            class
             MyEclipseKeyGen {

             7
             8
            public
            static
            final
            void
             main(String[] args){

             9         String subscriber = "yuxinwangjing";  //subscriber10         String licenseNum = "500";  //Number of Licenses11         String version = "100"; //版本号12         String subscriptionCode = getSubscriptionCode(subscriber, version , licenseNum ,true);
13         System.out.println(subscriptionCode);  //gLR8ZO-655055-6267705652275705114    }
1516publicstatic String getSubscriptionCode(String subscriber, String version, String licenseNum, boolean selected) {
17         Calendar cal = Calendar.getInstance();
18         cal.add(1, 3);  //年份加三年19         cal.add(6, -1);  //日期减一//当前日期20141226，到期日期则为2017122520         NumberFormat nf = new DecimalFormat("000");
21         licenseNum = nf.format(Integer.valueOf(licenseNum));
22         String verTime = selected ? (new StringBuffer("-")).append((new SimpleDateFormat("yyMMdd")).format(cal.getTime())).append("0").toString() : "-0812310";
23         String type = "YE3MB-";
24         String need = (new StringBuffer(String.valueOf(subscriber.substring(0,1)))).append(type).append(version).append(licenseNum).append(verTime).toString();
25         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(subscriber).toString();
26int suf = decode(dx);
27         String code = (new StringBuffer(String.valueOf(need))).append(String.valueOf(suf)).toString();
28return change(code);
29    }
3031privatestaticint decode(String s) {
3233int i = 0;
34char ac[] = s.toCharArray();
35int j = 0;
36for (int k = ac.length; j < k; j++)
37         i = 31 * i + ac[j];
38return Math.abs(i);
39    }
4041privatestatic String change(String s) {
42byte abyte0[] = s.getBytes();
43char ac[] = newchar[s.length()];
44int i = 0;
45for (int k = abyte0.length; i < k; i++) {
46int j = abyte0[i];
47if (j >= 48 && j <= 57)
48             j = ((j - 48) + 5) % 10 + 48;
49elseif (j >= 65 && j <= 90)
50             j = ((j - 65) + 13) % 26 + 65;
51elseif (j >= 97 && j <= 122)
52             j = ((j - 97) + 13) % 26 + 97;
53             ac[i] = (char) j;
54        }
55return String.valueOf(ac);
56    }
57 }