Restrict data input by using validation rules

What is Jakarta Bean Validation · lets you express constraints on object models via annotations · lets you write custom constraints in an extensible way

validation” among scientists This at least is indicated by the fact that validation Clearly, a concept of validation would not be fruitful if it could

validation Validation The process of establishing documentary evidence demonstrating that a procedure, process, or activity carried out in testing and

validation How it works · HTML form validation is applied via CSS's two pseudo-classes, :invalid and :valid · Bootstrap scopes the :invalid and :valid styles to parent