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| 1 | public static void main(String[] args) throws IOException {
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| 2 | BufferedReader rd = new BufferedReader(new InputStreamReader(System.in)); | |
| 3 | ||
| 4 | TreeMap<String, LinkedHashMap<String, int[]>> map = new TreeMap<>(); | |
| 5 | String input; | |
| 6 | ||
| 7 | while (!"end".equals(input = rd.readLine())) {
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| 8 | String[] info = input.split(" ");
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| 9 | String IP = info[0].split("=")[1];
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| 10 | String user = info[2].split("=")[1];
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| 11 | ||
| 12 | map.putIfAbsent(user, new LinkedHashMap<>()); | |
| 13 | map.get(user).putIfAbsent(IP, new int[1]); | |
| 14 | map.get(user).get(IP)[0]++; | |
| 15 | } | |
| 16 | ||
| 17 | map.forEach((key, value) -> System.out.printf("%s: %n%s.%n", key, getIPs(value)));
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| 18 | } | |
| 19 | ||
| 20 | private static String getIPs(LinkedHashMap<String, int[]> value) {
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| 21 | return value.entrySet().stream().map(e -> String.format("%s => %d", e.getKey(), e.getValue()[0])).collect(Collectors.joining(", "));
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| 22 | } |
