Java tutorial
//package com.java2s; public class Main { public static String int2ipForm(long ipInt) { StringBuilder sb = new StringBuilder(); String s1 = (ipInt & 0xFF) + ""; String s2 = ((ipInt >> 8) & 0xFF) + ""; String s3 = ((ipInt >> 16) & 0xFF) + ""; String s4 = ((ipInt >> 24) & 0xFF) + ""; sb.append(s4).append(".").append(s3).append(".").append(s2).append(".").append(s1); return sb.toString(); } }