import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
public class Zhuceji{
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){
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String userId = null;
int intLicenseNum = 1;
String strLicenseNum = null;
boolean bProFlag = true;
String strProFlag = null;
while ((userId == null) || ("".equals(userId.trim()))) {
System.out.print("用户名: ");
try {
userId = br.readLine();
}
catch (IOException ioe1){
}
}
System.out.print("注册码可用的用户数量(默认 1, 最大 999): ");
try {
strLicenseNum = br.readLine();
}
catch (IOException ioe2)
{
}
Object nf = new DecimalFormat("000");
if ((strLicenseNum == null) || ("".equals(strLicenseNum.trim())))
strLicenseNum = ((NumberFormat)nf).format(intLicenseNum);
else {
strLicenseNum = ((NumberFormat)nf).format(Integer.parseInt(strLicenseNum));
}
System.out.print("个人版 或 标准版(默认 个人版, n 标准版): ");
try {
strProFlag = br.readLine();
}
catch (IOException ioe3) {
}
if ((strProFlag != null) && (!("".equals(strProFlag.trim())))) {
bProFlag = false;
}
Calendar cal = Calendar.getInstance();
cal.add(1, 2);
cal.add(6, -1);
SimpleDateFormat sdf = new SimpleDateFormat("yyMMdd");
String need = userId.substring(0, 1) + "Y" +
((bProFlag) ? "E3MP" : "E2MY") + "-100" + strLicenseNum + "-" +
sdf.format(cal.getTime()) + "0";
String dx = need + "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." + userId;
int suf = decode(dx);
String code = need + suf;
System.out.println("注册码: " + 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) {
if ((s == null) || (s.length() == 0))
return 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);
}
}