MyEclipse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;