Write code to Return a plausibly-random number string in hex form.
//package com.book2s; import java.util.Random; public class Main { public static void main(String[] argv) { System.out.println(getRandomHexString()); }//from www . j a va2 s. co m private static final Random rand = new Random( System.currentTimeMillis()); /** * Return a plausibly-random number string in hex form. * Used mostly for temp filename generation.<p> * * Not (yet) synchronised as unlikely to be problem * with threads and contention. */ public static String getRandomHexString() { long n = rand.nextLong(); if (n == Long.MIN_VALUE) { n = 0; // corner case } else { n = Math.abs(n); } return Long.toString(n, 16); } }