package com.sh;

public class MD5 {};

         private long[] state = new long[4]; // state (ABCD)

         private long[] count = new long[2]; // number of bits, modulo 2^64

         private byte[] buffer = new byte[64]; // input buffer

         public String digestHexStr;

         private byte[] digest = new byte[16];

         public String getkeyBeanofStr(String inbuf) {}

                  return digestHexStr;

         }

         // 这是keyBean这个类的标准构造函数，JavaBean要求有一个public的并且没有参数的构造函数

         public MD5() {}

         private void keyBeanInit() {}

         private long G(long x, long y, long z) {}

         private long H(long x, long y, long z) {}

         private long I(long x, long y, long z) {}

         private long FF(long a, long b, long c, long d, long x, long s, long ac) {}

         private long GG(long a, long b, long c, long d, long x, long s, long ac) {}

         private long HH(long a, long b, long c, long d, long x, long s, long ac) {}

         private long II(long a, long b, long c, long d, long x, long s, long ac) {}

         private void keyBeanUpdate(byte[] inbuf, int inputLen) {}

                           index = 0;

                  } else

                           i = 0;

                  keyBeanMemcpy(buffer, inbuf, index, i, inputLen - i);

         }

         private void keyBeanFinal() {}

         private void keyBeanMemcpy(byte[] output, byte[] input, int outpos,

                           int inpos, int len) {}

         private void keyBeanTransform(byte block[]) {}

         private void Encode(byte[] output, long[] input, int len) {}

         }

         private void Decode(long[] output, byte[] input, int len) {}

         public static long b2iu(byte b) {}

         public static String byteHEX(byte ib) {};

                  char[] ob = new char[2];

                  ob[0] = Digit[(ib >>> 4) & 0X0F];

                  ob[1] = Digit[ib & 0X0F];

                  String s = new String(ob);

                  return s;

         }

         public static void main(String args[]) {}

}

大家可以直接把代码拷贝到Java文件中运行，就可以看到加密效果！