Update 0005-longest-palindromic-substring.java

Author: rahul003t

0005-longest-palindromic-substring/0005-longest-palindromic-substring.java

@@ -1,10 +1,14 @@
 class Solution {
     public String longestPalindrome(String s) {
 
-        if(s.length() ==0 || s == null)
+        if(s.length() ==0 )
         {
             return s;
         }
+        if(s.length() == null)
+        {
+            return null;
+        }
 
         int len = s.length();
         boolean[][] dp = new boolean[len][len];
@@ -41,4 +45,4 @@ else if(s.charAt(i)==s.charAt(j))
 
         return s.substring(maxStart, maxEnd+1);
     }
-}
+}