昨天重装机子下载了mycelipse.以下是以前收集的一个破解文件。
import java.io.*;

/**
 *
 * modify by TOTO
 * totongf@hotmail.com
 * 2005-10-6
 */
public class Crack {
 public static String convert(String s) {
  if (s == null || s.length() == 0)
   return 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);
 }

 private static int hash(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 inputString() {
  BufferedReader bufferedreader = new BufferedReader(
    new InputStreamReader(System.in));
  String s = null;
  try {
   s = bufferedreader.readLine();
  } catch (IOException ioexception) {
   ioexception.printStackTrace();
  }
  return s;
 }

 public static void main(String args[]) {
  try {
   System.out.println("My Eclipse IDE v4.1 Keygen");
   System.out.print("License Name : ");
   String s = inputString();
   String licStr = "YE3MP-401-00-0912310";
   String h = s.substring(0, 1)
     + licStr
     + "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."
     + s;
   int j = hash(h);

   String lic = s.substring(0, 1) + licStr + Integer.toString(j);
   System.out.println("License Key  : " + convert(lic));
  } catch (Exception exception) {
   exception.printStackTrace();
  }
 }
}
运行结果：