import java.util.Arrays;

/**
 * Approach1
 * Simple sort
 *      Simplest but, no one want's
 */
public class Approach1 {
    public void sort012(int[] a) {
        if (a == null || a.length == 0) {
            throw new IllegalArgumentException("Array is null or empty");
        }
        Arrays.sort(a);
    }
}