java_myeclipse8.6_注册机

那些年的记忆,一个很好玩的东西

package main; import java.io.*; //Username:scott //Serial:fLR8ZC-855575-6950755979104901 //注册方法: MyEclipse --> Subs.... 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) { } } }