How to count the number of occurrences of an element in a List

Question

I have an ArrayList, a Collection class of Java, as follows:

ArrayList animals = new ArrayList();
animals.add(\"bat\         


        

Answer 1

List list = Arrays.asList("as", "asda", "asd", "urff", "dfkjds", "hfad", "asd", "qadasd", "as", "asda",
        "asd", "urff", "dfkjds", "hfad", "asd", "qadasd" + "as", "asda", "asd", "urff", "dfkjds", "hfad", "asd",
        "qadasd", "as", "asda", "asd", "urff", "dfkjds", "hfad", "asd", "qadasd");

Method 1:

Set set = new LinkedHashSet<>();
set.addAll(list);

for (String s : set) {

    System.out.println(s + " : " + Collections.frequency(list, s));
}

Method 2:

int count = 1;
Map map = new HashMap<>();
Set set1 = new LinkedHashSet<>();
for (String s : list) {
    if (!set1.add(s)) {
        count = map.get(s) + 1;
    }
    map.put(s, count);
    count = 1;

}
System.out.println(map);