myeclipse 试用期过了,该怎么办?

MyEclipse提示过期了,MyEclipse Trial Expired，可以利用以下class生成注册码：

源码如下：

import java.io.*; ?

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, "20"); ?

System.out.println("Serial:" + res); ?

reader.readLine(); ?

} catch (IOException ex) { ?

} ?

} ?

}

使用效果：