package sort.test;

import java.util.Arrays;
import java.util.Collections;

public class IntegerGenerator {
	// create an array of 'unique' random integers
	public static Integer[] generate(Integer numberOfInts) {
		assert (numberOfInts > 0); // must be positive

		Integer arr[] = new Integer[numberOfInts];
		for (int i = 0; i < numberOfInts; i++) {
			arr[i] = i; // 'uniqueness' guaranteed
		}
		Collections.shuffle(Arrays.asList(arr)); // shuffle
		return arr;
	}
}