MyEclipse6.5注册机

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) {    }  }  }