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Diffstat (limited to 'challenge-278/deadmarshal/java/Ch1.java')
| -rw-r--r-- | challenge-278/deadmarshal/java/Ch1.java | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/challenge-278/deadmarshal/java/Ch1.java b/challenge-278/deadmarshal/java/Ch1.java new file mode 100644 index 0000000000..9715d94bc7 --- /dev/null +++ b/challenge-278/deadmarshal/java/Ch1.java @@ -0,0 +1,36 @@ +import java.util.HashMap; +import java.util.Map; +import java.util.regex.Matcher; +import java.util.regex.Pattern; +import java.util.stream.Collectors; + +public class Ch1 { + public static void main(String[] args) { + try { + System.out.println(sort_string("and2 Raku3 cousins5 Perl1 are4")); + System.out.println(sort_string("guest6 Python1 most4 the3 popular5 is2 " + + "language7")); + System.out.println(sort_string("Challenge3 The1 Weekly2")); + } catch (Exception e) { + System.err.println(e.getMessage()); + } + } + + private static String sort_string(String str) throws Exception { + Pattern pattern = Pattern.compile("(\\w+)(\\d+)"); + Map<String, Integer> m = new HashMap<>(); + for (String s : str.split(" ")) { + Matcher matcher = pattern.matcher(s); + if (matcher.find()) + m.put(matcher.group(1), Integer.parseInt(matcher.group(2))); + else + throw new Exception("Wrong format!"); + } + return m.entrySet() + .stream() + .sorted(Map.Entry.comparingByValue()) + .map(Map.Entry::getKey) + .collect(Collectors.joining(" ")); + } +} + |
