JAVA中UDP通信如何接收我写的方法？

public static byte[] Point(String inputStr,int len){
byte[] result = new byte[inputStr.length() / 2];
for (int i = 0; i < inputStr.length() / 2; ++i)

result[i] = (byte)(Integer.parseInt(inputStr.substring(i * 2, i * 2 +2), 16) & 0xff);
return result;

}
UDP通信接收怎么写呢？

http://blog.csdn.net/jbgtwang/article/details/20906755