package com.example; import com.infinityrefactoring.lightvalidator.Validator; import com.infinityrefactoring.lightvalidator.Validators; public class Person { public static final Validator<Person> VALIDATOR = Validator.build(Person.class)	.test("age", Person::getAge, Validators.isBetweenThan(1, 10))	.test("name", Person::getName, Validators.isNotNull())	.build(); private int age; private String name; public Integer getAge() { return age;	} public String getName() { return name;	} public void setAge(int age) { this.age = age;	} public void setName(String name) { this.name = name;	} }

package com.example; import java.util.Map; import java.util.Set; public class Main { public static void main(String[] args) { Person person = new Person(); System.out.println("Case 1:\n"); Map<String, Set<String>> constraintViolations1 = Person.VALIDATOR.validate(person); constraintViolations1.forEach((key, value) -> { System.out.println(key); value.forEach(m -> System.out.printf(" %s\n", m));	}); person.setAge(5); System.out.println("\nCase 2:\n"); Map<String, Set<String>> constraintViolations2 = Person.VALIDATOR.validate(person); constraintViolations2.forEach((key, value) -> { System.out.println(key); value.forEach(m -> System.out.printf(" %s\n", m));	});	} }