激活MyEclipse 6.5方法-通过一段Java程序生成激活码

在MyEclipse中新建一个Java类，名为MyEclipseKeyGen，将下面的Java代码拷贝到MyEclipseKeyGen类中，先修改变量subscriber的值，然后运行程序即可获得Subscription Code。将subscriber和subscriptionCode输入上图所示区域，点击“OK”，即可激活MyEclipse6.5（通过测试，本人已成功激活）。其他的MyEclipse版本暂没有测试过。

import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;

public class MyEclipseKeyGen {

    public static final void main(String[] args){
        String subscriber = "yuxinwangjing";  //subscriber
        String licenseNum = "500";  //Number of Licenses
        String version = "100"; //版本号
        String subscriptionCode = getSubscriptionCode(subscriber, version , licenseNum ,true);
        System.out.println(subscriptionCode);
    }
    
    public static String getSubscriptionCode(String subscriber, String version, String licenseNum, boolean selected) {
        Calendar cal = Calendar.getInstance();
        cal.add(1, 3);  //年份加三年
        cal.add(6, -1);  //日期减一,当前日期20141226，到期日期则为20171225
        NumberFormat nf = new DecimalFormat("000");
        licenseNum = nf.format(Integer.valueOf(licenseNum));
        String verTime = selected ? (new StringBuffer("-")).append((new SimpleDateFormat("yyMMdd")).format(cal.getTime())).append("0").toString() : "-0812310";
        String type = "YE3MB-";
        String need = (new StringBuffer(String.valueOf(subscriber.substring(0,1)))).append(type).append(version).append(licenseNum).append(verTime).toString();
        String dx = (new StringBuffer(String.valueOf(need))).append("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.").append(subscriber).toString();
        int suf = decode(dx);
        String code = (new StringBuffer(String.valueOf(need))).append(String.valueOf(suf)).toString();
        return change(code);
    }
    
    private 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);
    }
    
    private static String change(String 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);
    }
}