these can be final

JohnVanNote · JohnVanNote · commit f00ff209fee4 · 2023-08-21T21:30:10.000-04:00
diff --git a/src/com/cleancoder/args/Args.java b/src/com/cleancoder/args/Args.java
@@ -19,15 +19,15 @@ public Args(String schema, String[] args) throws ArgsException {
 
     private void parseSchema(String schema) throws ArgsException {
         for (String element : schema.split(","))
-            if (element.length() > 0)
+            if (!element.isEmpty())
                 parseSchemaElement(element.trim());
     }
 
     private void parseSchemaElement(String element) throws ArgsException {
         char elementId = element.charAt(0);
         String elementTail = element.substring(1);
         validateSchemaElementId(elementId);
-        if (elementTail.length() == 0)
+        if (elementTail.isEmpty())
             marshalers.put(elementId, new BooleanArgumentMarshaler());
         else if (elementTail.equals("*"))
             marshalers.put(elementId, new StringArgumentMarshaler());
