生成myEclipse注册码的代码及方法

1.在myeclipse中新建类，并粘贴上如下代码并执行生成code。

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) {      }   }   }  

2.点击myeclipse中的Window下的Preferences,然后输入生成的注册码即可完成