List<String> data = Arrays.asList("a", "d", "a", "d", "a", "b", "a", "c", "d", "b", "c", "c", "d", "d");
Map<String, Long> freq = data.stream()
.collect(Collectors.groupingBy(Function.identity(), Collectors.counting()));
List<String> results = freq.entrySet().stream().sorted(Map.Entry.comparingByValue()).map(Map.Entry::getKey)
.collect(Collectors.toList());
System.err.println(results);
String result = results.get(results.size() - 1);
assertThat(result, is("d"));Running example.BasicTest
[b, c, a, d]H=(01 02 03 04 05 06 07 08 09 10 11)for i in ${H[@]}; do echo ${H[${i#0}]} ;done02
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11for J in ${H[@]}; do echo $J ;donefor (( i=0; i<${#H[@]}; i++ )); do echo ${H[${i}]}; donefor (( i=0; i<${#H[@]}; i++ )); do echo ${H[i]}; donedocker network ls
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