打开软件，写入以下代码，调试运行，运行结果是一串秘钥，记住这个秘钥，当软件过期时输入这个秘钥就可以解锁了，亲测有效。
import java.io.*;
public class MyEclipseGen {
private static 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,penalities 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){
}
}
}
当使用MyEclipse工具时总是弹出窗口提醒要注册时，可以将MyEclipseGen.java类直接考到任意项目下，然后执行，
在控制台输入名称（如：htt），按回车键，会生成一串破解码，记住这个名称，和生成的破解码，
当再弹出注册窗口时，点击注册，将名称和破解码粘贴在对应的位置，点击OK即可。
之后使用MyEclipse就再也没这种弹框了。