From 157ab60768bc8858a9055f6aa93f536606e2578d Mon Sep 17 00:00:00 2001
From: Tharun Kanna <66260870+tharunkanna14@users.noreply.github.com>
Date: Tue, 8 Nov 2022 22:19:54 +0530
Subject: [PATCH] Create 290-word-pattern

---
 java/290-word-pattern | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 java/290-word-pattern

diff --git a/java/290-word-pattern b/java/290-word-pattern
new file mode 100644
index 000000000..0edd966b6
--- /dev/null
+++ b/java/290-word-pattern
@@ -0,0 +1,26 @@
+class Solution {
+    public boolean wordPattern(String pattern, String s) {
+        String[] sArray = s.split("\s");
+        if(sArray.length != pattern.length()) {
+            return false;
+        }
+        
+        HashMap<Character,String> charToWord = new HashMap<>();
+        HashMap<String,Character> wordToChar = new HashMap<>();
+        
+        for (int i = 0; i < pattern.length(); i++) {
+        
+            if(charToWord.containsKey(pattern.charAt(i)) && !charToWord.get(pattern.charAt(i)).equals(sArray[i])) {
+                return false;
+            }
+            
+            if(wordToChar.containsKey(sArray[i]) && !wordToChar.get(sArray[i]).equals(pattern.charAt(i))) {
+                return false;
+            }
+            
+            charToWord.put(pattern.charAt(i),sArray[i]);
+            wordToChar.put(sArray[i],pattern.charAt(i));
+        }
+        return true;    
+    }
+}