java代码生成MyEclipse注册码

将下面的代码复制到MyEclipse中，然后运行，输入相应的用户名，就可以得到注册码哦，而且注册码是可以用的。

	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) {  	   }  	}  	}