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POSequence of random selection with no two consecutive objects same
 

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  1. POSequence of random selection with no two consecutive objects same
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    <p>I wanted to write a function which can be subsequently called with a integer parameter (starting from 1 to 100) which randomly gives me an integer 0, 1, or 2 but never two same in a row.</p> <pre><code>import java.util.ArrayList; import java.util.List; import java.util.Random; public class UniqueRandomObjectSelector { //Goal is to select objects from a bucket randomly with teh condition that //no two selections in a row would be same public static void main(String[] args) { for (int i = 0; i &lt; 100; i++) { System.out.println(i + "th random Object is " + selectObject(i) + " "); } } //Pick the object from the pool of 3 . e.g. the bucket contains the numbers 1, 2 and 3 private static int PickObject(int j) { Random rand = new Random(getSeed()); //Find i-1 wala number for (int i = 1; i &lt; j; i++) { rand.nextInt(3); } return rand.nextInt(3); } //Fixed seed so that random number generation sequence is same static long getSeed() { return 11231; } static int selectObject(int index) { //Holds the sequence of Objects List&lt;Integer&gt; list = new ArrayList&lt;&gt;(); int prev = -999; int i = 1; //Keep generating the sequence till we have the requested index of objects while (list.size() &lt;= index) { //Get a random number from fixed seed int ranNum = PickObject(i); //Check if this was same as previous while (prev == ranNum) { ranNum = PickObject(++i); } prev = ranNum; list.add(ranNum); i++; } return (list.get(index)); } } </code></pre> <p>Can this be simplified , looks like I am using too many loops.</p>
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