Java tutorial
//package com.java2s; import java.util.Random; public class Main { public static int[] generateUnsortedArray(int length, int maxValue) { int[] array = new int[length]; Random r = new Random(); for (int i = 0; i < length; i++) { array[i] = r.nextInt(maxValue) + 1; // Avoid 0 value for better drawing } return array; } }