How do you find age in Java?

How to validate that user is 18 or older from date of birth? Based on the user birthday input we can calculate in JavaScript is this user 18 or older by using this function: function underAgeValidate(birthday){ // it will accept two types of format yyyy-mm-dd and yyyy/mm/dd var optimizedBirthday = birthday.

Java Java Input. Created: May-23, 2021 | Updated: November-26, 2021. Validation is the process of checking user input or the values from the database against specific constraints .

Java Calculate Age

The following steps can be followed to compute the answer: