myeclipse10激活注册码生成器代码

在myeclipse10里面生成一个.java文件，将下面的代码贴进去，执行即可

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader;
public class aaa{ 
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 aaa()
{ 
    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(); 
aaa myeclipsegen = new aaa(); 
String res = myeclipsegen.getSerial(userId, "5"); 
System.out.println("Serial:" + res); 
reader.close();
} catch (IOException ex) {} 
} 
}