MyEclipse注冊源代碼

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 the Subscriber:");
        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("Subscription Code: " + res);
        reader.readLine();
    }
    catch (IOException ex) {
    }
}

}</pre>
</b></span></font></div>