Merge pull request TheAlgorithms#374 from GammaBurst101/Fix-error

Fix a logical error and set a method to private

Author: varunu28

Others/countwords.java

@@ -18,8 +18,8 @@ public static void main(String[] args){
 	  input.close();
         } 
 
-        public static int wordCount(String s){
-          if(s.isEmpty() || s == null) return -1;
+        private static int wordCount(String s){
+          if(s.isEmpty() || s == null) return 0;
           return s.trim().split("[\\s]+").length;
         }