counting occurrences

package jah.tests;

public class TestMe {

    public static final int MAX_VAL=20;

    public static void countOccurrencesId(int[] arr) {
        int[] counts = new int[MAX_VAL+1];
        //first we work out the count for each one
        for (int i: arr)
            counts[i]++;
        //now we print the results
        for (int i: arr)
            if (counts[i]>0) {
                System.out.println(i+" occurs "+counts[i]+" times");
                //now set this count to zero so we won't get duplicates
                counts[i]=0;
            }
    }

    public static void countOccurrences(int[] arr) {
        int[] counts = new int[MAX_VAL+1];
        //first we work out the count for each one
        for (int i=0; i<arr.length; i++)
            counts[arr[i]]++;
        //now we print the results
        for (int i=0; i<arr.length; i++)
            if (counts[arr[i]]>0) {
                System.out.println(arr[i]+" occurs "+counts[arr[i]]+" times");
                //now set this count to zero so we won't get duplicates
                counts[arr[i]]=0;
            }
    }

    public static void main(String[] args) {

        int[] countMe = { 10, 10, 20, 10, 20, 15 };

        System.out.println("First version:");
        countOccurrencesId(countMe);
        System.out.println();
        System.out.println("Second version:");
        countOccurrences(countMe);
    }

}