diff --git a/src/leetcode/242_valid-anagram/20251214.java b/src/leetcode/242_valid-anagram/20251214.java
new file mode 100644
index 0000000..ff7a868
--- /dev/null
+++ b/src/leetcode/242_valid-anagram/20251214.java
@@ -0,0 +1,29 @@
+class Solution {
+    public boolean isAnagram(String s, String t) {
+        Map<Character, Integer> mapS = new HashMap<>();
+        Map<Character, Integer> mapT = new HashMap<>();
+        createMap(s, mapS);
+        createMap(t, mapT);
+
+        boolean isEqual = true;
+        for (Map.Entry<Character, Integer> entryS : mapS.entrySet()) {
+            for (Map.Entry<Character, Integer> entryT : mapT.entrySet()) {
+                if (entryS.getKey() == entryT.getKey() && entryS.getValue() != entryT.getValue()) {
+                    isEqual = false;
+                }
+            }
+        }
+
+        return isEqual;
+    }
+
+    private void createMap(String str, Map<Character, Integer> map) {
+        for (char c : str.toCharArray()) {
+            if (map.containsKey(c)) {
+                map.put(c, map.get(c) + 1);
+            } else {
+                map.put(c, 1);
+            }
+        }
+    }
+}