How to convert the IP address represented by an integer to a string representation in Java

/** 
 * Converts an integer representation of an IP address to a string representation. 
 * 
 * @param IP 32-bit integer representation of the IP address 
 * @return dot representation of the IP address * * Public
static final String long2ip (final long IP) {
 
  final long[] Mask = {0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000};  
    Final StringBuilder ipaddress = new StringBuilder ();  
    for (int i = 0; i < mask.length i++) {  
        Ipaddress.insert (0, (IP & mask[i]) >> (i * 8));  
        if (I < mask.length-1) {  
            ipaddress.insert (0, ".");  
        }  
    }  
    return ipaddress.tostring ();  
}
 

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