How to find a duplicate of length 5 in a single array. Java
<p>I create an array that then prints in sets of five. I want to then be able to search the array by 5 to see if there are any duplicates. I've tried but I can only think of a way to search by each value not five. If anyone can point me in the right direction, that would be great. Thanks.</p>

<pre><code> public class findPat {
        static int arr [] = new int [10];
        static int st = 1;
        static int end = 56;
        static double t1;
        static double t2;

        public static void main(String[] args){

            t1=System.currentTimeMillis(); 
            for(int n=0; n&lt;100; n++){   
                for (int i=0; i&lt;arr.length; i++)
                    arr[i]= (int) (Math.random()* (end-st +1)) +st;

                for (int i=0; i&lt;5; i++){ 

                    if (i%5==0) 
                        System.out.println(); 
                        System.out.print("\t" + arr[i]);} 
                    }
            t2=System.currentTimeMillis();
            System.out.println();
            System.out.println();
            System.out.println("\t" + "Total run time is " + ((t2-t1)) + "ms");

            }
        }
</code></pre>

<p>the console looks like this: </p>

<pre><code>    18  22  42  14  38
    2   2   14  9   8
    6   29  38  37  33
    6   41  41  27  7
    20  41  38  11  50
    16  17  41  21  19
    40  33  9   10  7
    12  54  10  30  36
</code></pre>

<p>however each row is in the same array but is just printing 5 at a time.
the console will have more than just those few lines. I want to be able to search the array and check each row against the rest to see how many times it appears, if it does.</p>
