myeclipse8.5注册码怎么用_java生成不重复验证码

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注册码：

用户名: myeclipse5.5

注册码: zLR7ZL-655444-60536056302480798

注册机代码：

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintStream; import java.text.DecimalFormat; import java.text.NumberFormat; import java.text.SimpleDateFormat; import java.util.Calendar;

public class MyEclipseRegister{

private static final String L = “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 static void main(String[] args){ BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String userId = null; int intLicenseNum = 1; String strLicenseNum = null; boolean bProFlag = true; String strProFlag = null;

while ((userId == null) || (“”.equals(userId.trim()))) { System.out.print(“用户名: “); try { userId = br.readLine(); } catch (IOException ioe1){ } } System.out.print(“注册码可用的用户数量(默认 1, 最大 999): “); try { strLicenseNum = br.readLine(); } catch (IOException ioe2) { }

Object nf = new DecimalFormat(“000”); if ((strLicenseNum == null) || (“”.equals(strLicenseNum.trim()))) strLicenseNum = ((NumberFormat)nf).format(intLicenseNum); else { strLicenseNum = ((NumberFormat)nf).format(Integer.parseInt(strLicenseNum)); }

System.out.print(“个人版 或 标准版(默认 个人版, n 标准版): “); try { strProFlag = br.readLine(); } catch (IOException ioe3) { } if ((strProFlag != null) && (!(“”.equals(strProFlag.trim())))) { bProFlag = false; }

Calendar cal = Calendar.getInstance(); cal.add(1, 2); cal.add(6, -1); SimpleDateFormat sdf = new SimpleDateFormat(“yyMMdd”);

String need = userId.substring(0, 1) + “Y” + ((bProFlag) ? “E3MP” : “E2MY”) + “-100” + strLicenseNum + “-” + sdf.format(cal.getTime()) + “0”; String dx = need + “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.” + userId; int suf = decode(dx); String code = need + suf; System.out.println(“注册码: ” + change(code)); } static int decode(String s) { int i = 0; char[] ac = s.toCharArray(); int j = 0; for (int k = ac.length; j < k; ++j) i = 31 * i + ac[j];

return Math.abs(i); }

static String change(String s) { if ((s == null) || (s.length() == 0)) return s; byte[] abyte0 = s.getBytes(); char[] ac = new char[s.length()]; int i = 0; for (int k = abyte0.length; i < k; ++i) { int 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; } return String.valueOf(ac); } }

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