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

You have to do a few things:

1. Define an upper and lower bound for your range of numbers.
2. Establish a convenient object/data structure to store occurrences of these numbers.
3. Iterate through the passed-in array and count all occurrences of each number, storing the result in the convenient object/data structure.

If this is done in a simple manner, it could be only a matter of reading the elements from the passed-in array and printing out the final result.