Add a helper function to extract String from JSON object

Author: Benjamin Yap

src/com/bwyap/utility/resource/JSONWrapper.java

@@ -40,6 +40,17 @@ protected static int getInteger(JSONObject o, String key) {
 	}
 
 
+	/**
+	 * A helper function for extracting a String value from a JSON object
+	 * @param o
+	 * @param key
+	 * @return
+	 */
+	protected static String getString (JSONObject o, String key) {
+		return o.get(key).toString();
+	}
+	
+	
 	/**
 	 * Validates the contents of the loaded JSON object.
 	 * <p>