how to count the number of occurrences in a hashset code example

Example 1: how to count the number of occurrences of an element in a arraylist in java

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

Example 2: how to count the number of occurrences of an element in a arraylist in java

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