myeclipse注册码程序修正处理
从网上看了一个注册码程序，也总是提示即将过期，修改了注册码程序，可以了
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import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
?
?
public class Crack {
public static final void main(String[] args) {
?String id = "test"; // 可更给为您的名字
?String num = "999";// 许可证数量
?System.out.println(getSerial(id, "100", num, true));
}
public static String getSerial(String userId, String version,
? String licenseNum, boolean selected) {
?Calendar cal = Calendar.getInstance();
?cal.add(1, 3);
?cal.add(6, -1);
?NumberFormat nf = new DecimalFormat("000");
?licenseNum = nf.format(Integer.valueOf(licenseNum));
?String verTime = selected ? (new StringBuffer("-")).append(
? ?(new SimpleDateFormat("yyMMdd")).format(cal.getTime())).append(
? ?"0").toString() : "-1012310";
?String type = "YE3MB-";
?String need = (new StringBuffer(String.valueOf(userId.substring(0, 1))))
? ?.append(type).append(version).append(licenseNum)
? ?.append(verTime).toString();
?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(userId).toString();
?int suf = decode(dx);
?String code = (new StringBuffer(String.valueOf(need))).append(
? ?String.valueOf(suf)).toString();
?return change(code);
}
private 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);
}
private 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);
}
}
