Create 290-word-pattern

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; 
+ }
+}