MyEclipse注册码生成类代码
执行下面代码需注意：1. 注册Myeclipse的时候要先断开网络，否则可能注册不成功！
??????????????????????????????2. 注册方法：window -> preferences -> myeclipse -> subscription
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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)
??????? {}
??? }
}
