爱华网复制以下代码：
package test;
import java.io.*;
public class MyEclipseGen {
privatestatic final String LL = "Decompiling this copyrighted software isa violation of both your license agreement and the DigitalMillenium Copyright Act of 1998 (http://www.loc.gov/copyright/legislation/dmca.pdf).Under section 1204 of the DMCA, penalties range up to a $500,000fine or up to five years imprisonment for a first offense. Thinkabout it; pay for a license, avoid prosecution, and feel betterabout yourself.";
publicString 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 = newjava.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 = newStringBuilder(need).append(LL).append(userId).toString();
int suf = this.decode(dx);
String code = newStringBuilder(need).append(String.valueOf(suf)).
toString();
return this.change(code);
}
private intdecode(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);
}
privateString 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);
}
publicMyEclipseGen() {
super();
}
publicstatic void main(String[] args) {
try {
System.out.println("please input register name:");
BufferedReader reader = new BufferedReader(newInputStreamReader(
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) {
}
}
}
运行该代码，在控制台中会出现：
please input register name:
×××××（你的name）
即生成序列号。
如：
please input register name:
woniu
Serial:jLR8ZC-855575-60525754180783
这就可以生成注册码啦。
