Validating a date in java
So lets fix this together: The first we need is a JSR annotation which we use to annotate the code. We provide from the start proper default values, to avoid none sense data. This means the validation engine directly accesses the instance variable and does not invoke the property accessor method even if such an accessor exists.
Note that to figure out the number of days in February you'll need to check if it's a leap year. An assignment statement that sets day Valid to true if the day entered is legal for the given month and year. If the month, day, and year entered are all valid, print "Date is valid" and indicate whether or not it is a leap year.In this chapter you will learn how to declare (see Section 2.1, “Declaring bean constraints”) and validate (see Section 2.2, “Validating bean constraints”) bean constraints.Section 2.3, “Built-in constraints” provides an overview of all built-in constraints coming with Hibernate Validator.In this section you will learn how to enhance an object model with these annotations.There are the following three types of bean constraints: When using field-level constraints field access strategy is used to access the value to be validated.