changed addMovie end of parts clean

src/com/moviesdb/DataBaseConnector.java

@@ -201,9 +201,9 @@ public class DataBaseConnector {
                 valPart += " '" + movie.getImageLink() + "',";
             }
 
-            if (intoPart.charAt(intoPart.length() - 1) == ',')
+            if (intoPart.endsWith(","))
                 intoPart = intoPart.substring(0, intoPart.length() - 1);
-            if (valPart.charAt(valPart.length() - 1) == ',')
+            if (valPart.endsWith(","))
                 valPart = valPart.substring(0, valPart.length() - 1);
 
             //сборка текста запроса