find the frequency of elements in a java array

Question

I have an int array:

{1,2,4,2,3,5,6,4,3}

How can I find frequencies of array elements like 1=1,2=2,3=2,4=4... I need a class w

Answer 1

class MapTest
{
    public static void main(String args[]){
        HashMap h = new HashMap();
        int arr[] = new int[]{2,2,3,3,5,6,7,9,9,0};
        for(int i=0; i