@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
+
@@ -0,0 +1,32 @@
+package com.company;
+
+import java.util.*;
+
+// https://www.geeksforgeeks.org/find-all-strings-that-match-specific-pattern-in-a-dictionary/
+
+public class Main {
+
+    public void patternMatching(List<String> strings, String pattern){
+        int len = pattern.length();
+        String hash = findPattern(pattern);
+        for(String string : strings){
+            if(string.length() == len && findPattern(pattern).equals(hash))
+                System.out.println(string);
+        }
+    }
+
+    public String findPattern(String pattern){
+        HashMap<Character, Integer> map = new HashMap<>();
+        String result = "";
+        int count = 0;
+
+        for(int i=0;i<pattern.length();i++){
+            char ch = pattern.charAt(i);
+            if(!map.containsKey(ch))
+                map.put(ch, count++);
+
+            result += map.get(ch);
+        }
+        return result;
+    }
+}