生成myEclipse序列号代码

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;

 

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)) {

 

j = (((j - 97) + 13) % 26) + 97;

 

}

 

ac[i] = (char) j;

 

i++;

 

}

 

return String.valueOf(ac);

 

}

 

public MyEclipseGen() {

 

super();

 

}

 

public static void main(String[] args) {

 

try {

 

System.out.println("please input register name:");

 

BufferedReader reader = new BufferedReader(new InputStreamReader(

 

System.in));

 

String userId = null;

 

userId = reader.readLine();

 

MyEclipseGen myeclipsegen = new MyEclipseGen();

 

String res = myeclipsegen.getSerial(userId, "5");

 

System.out.println("Serial:" + res);

 

reader.readLine();

 

} catch (IOException ex) {

 

}

 

}

 

}

please input register name:
xxx

Serial:pLR8ZC-855550-6854575794008152