Update Palindrome.java

tong72 · web-flow · commit a5bf69fcbd6e · 2018-12-22T17:27:31.000-08:00
Test cases where String x is null or has a length of 0 or 1 for FirstWay method.
diff --git a/Others/Palindrome.java b/Others/Palindrome.java
@@ -1,6 +1,6 @@
 class Palindrome {
 	
-	private String reverseString(String x){ //*helper method
+	private String reverseString(String x){ //*helper method	
 		String output = "";
 		for(int i=x.length()-1; i>=0; i--){
 			output += x.charAt(i); //addition of chars create String
@@ -10,7 +10,9 @@ private String reverseString(String x){ //*helper method
 	
 	
 	public Boolean FirstWay(String x){ //*palindrome method, returns true if palindrome
-		return (x.equalsIgnoreCase(reverseString(x)));
+		if(x == null || x.length() <= 1) 
+            		return true;
+        	return (x.equalsIgnoreCase(reverseString(x)));
 	}
   	
   	public boolean SecondWay(String x)
