MyEclipse生成注册码java代码

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) { 
	} 
	} 


}

运行的时候要输入一个名字比如:admin，下面是运行结果

please input register name:
admin
Serial:nLR8ZC-855550-6253635672344257

注：这个运行结果也是可以直接用了，注册码复制的时候不要复制"Serial:",有问题下面留言