From 13beee7dd987b2f1020e789b3d327fe3e21cf863 Mon Sep 17 00:00:00 2001 From: Ali Date: Wed, 30 Jul 2025 11:15:03 +0330 Subject: TWC332 --- challenge-332/deadmarshal/java/Ch2.java | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 challenge-332/deadmarshal/java/Ch2.java (limited to 'challenge-332/deadmarshal/java/Ch2.java') diff --git a/challenge-332/deadmarshal/java/Ch2.java b/challenge-332/deadmarshal/java/Ch2.java new file mode 100644 index 0000000000..ba0eeb0fa3 --- /dev/null +++ b/challenge-332/deadmarshal/java/Ch2.java @@ -0,0 +1,16 @@ +import java.util.HashMap; +import java.util.Map; + +public class Ch2 { + public static void main(String[] args) { + System.out.println(odd_letters("weekly")); + System.out.println(odd_letters("perl")); + System.out.println(odd_letters("challenge")); + } + + private static boolean odd_letters(String s) { + Map h = new HashMap<>(); + for (var c : s.toCharArray()) h.merge(c, 1, Integer::sum); + return h.values().stream().allMatch(a -> a % 2 != 0); + } +} -- cgit