How is a lablevaluebean used in struts2?

I see you are using a LableValueBean to populate and show a dropdown. It's a former bean used at last to display a list of objects. In Struts2 you're no longer required such a helper bean. You can display a list of objects by specifying a key field that would hold a unique value of the selected option and a value to be shown as the option text.
One may also ask, what can Struts 2 framework be used for?
Struts 2 Framework. The Struts 2 framework is used to develop MVC (Model View Controller) based web applications. Struts 2 is the combination of webwork framework of opensymphony and struts 1.
Accordingly, what does a form bean do in struts? A form bean is an instance of a subclass of an ActionForm class and other FormBean class, which stores HTML form data from a submitted client request or that can store input data from a Struts action link that a user clicked. You can divide Form Beans into two types.
Also, when do labelvaluebeans are equal in Apache Struts?
LabelValueBeans are equal if their values are both null or equal. The hash code is based on the object's value. Return a string representation of this object. Comparator that can be used for a case insensitive sort of LabelValueBean objects.
Subsequently, when to use the beanvalidator class in struts?
There are two types of ValidatorForm class, the BeanValidatorForm (only from Struts version 1.2.4) and the LazyValidatorForm (only from Struts version 1.2.6). Both classes support XML based validation like the ValidatorForm class. The BeanValidator class can be used when you have a simple class (POJO = Plain Old Java Object).