MyEclipse提示过期（MyEclipse Trial Expired）

利用注册类可以生成Myeclipse注册码.

import java.io.*;     
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, "0");     System.out.println("Serial:" + res);     reader.readLine();     } catch (IOException ex) {     }     }     }

运行后效果如下: 

修改String res = myeclipsegen.getSerial(userId, "20"); 中"20"为"0"可以变成Number of Licenses为Unlimited.

 

然后

然后将刚才生成的序列号输入

点击下面的Finish即可

代码测试过了，可行！

从Myeclipse--》subscription information 即可进入update subscription界面。

ok，注册成功