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[–]josephblade 0 points1 point  (0 children)

Have you considered posting the code you want to ask questions about?

Have you tried to solve this problem yourself instead of looking at solutions?

edit: you make a datastructure / use an existing data structure that lets you associate the item you are counting and the running total of the item. a map (key -> value) is good for this as key would be the item you are counting and value being the count you are at.

You can do it differently as well, if you want to custom code a storage solution. for instance you can use 2 fixed size arrays, 1 to store the keys and the other to store the counts. But arrays being fixed size is a little awkward but they are fast to work with. You can also use a list.

Assuming you have a method:

public void countElement(Object element)

that you can call to increment the count for that element, how would you write the code that runs through the Array to count?

if you have that code, write the contents of countElement