Count Frequency of Elements in a list using Set, Map and Streams

      List<Integer> list = Arrays.asList(1,2,2,6,7,8,4,3);  
                //Using a Set  
                Set<Integer> distict = new HashSet<>(list);  
                System.out.println("Using a Set =================>");  
                for(int i : distict) {  
                     System.out.println( i + ":" + Collections.frequency(list, i));  
                }  
                System.out.println("Using a Set =================>");  
                //Using a Set  
                //Using a Map  
                Map<Integer, Integer> frequencyMap = new HashMap<>();  
                for(int i: list) {  
                     Integer count = frequencyMap.get(i);  
                     if (count == null) {  
                          count = 0;  
                     }       
                     frequencyMap.put(i, count + 1);  
                }  
                System.out.println("Using a Map =================>");  
                for(Map.Entry<Integer, Integer> entry: frequencyMap.entrySet()) {  
                     System.out.println(entry.getKey() + ": " + entry.getValue());  
                }  
                System.out.println("Using a Map =================>");  
                //Using a Map  
                //Using Streams  
                Map<Integer, Long> streamFrequencyMap = list.stream().collect(Collectors.groupingBy(Function.identity(),Collectors.counting()));  
                for (Map.Entry<Integer,Long> entry: streamFrequencyMap.entrySet()) {  
                     System.out.println(entry.getKey() +": "+entry.getValue());  
                }  
                //Using Streams