Check out example codes for "how to count the number of occurrences of an element in a arraylist in java". It will help you in understanding the concepts better.

Code Example 1

ArrayList<String> listName = new ArrayList<>();
int occurrences = Collections.frequency(listName, "element");

Code Example 2

int occurrences = Collections.frequency(animals, "bat");

Learn ReactJs, React Native from akashmittal.com