import java.util.* ;
import java.util.function.* ;

//----------------------------------------------------------------------------------------------------------
/*
 Illustrating the functional interfaces
*/

class Person
{
    public enum Sex {
        MALE, FEMALE
    }
    String name;
    //LocalDate birthday;

    Sex gender;
    String emailAddress;
    int age ;
    public int getAge()
    {
        return age ;
    }

    public Sex getGender()
    {
        return gender ;
    }

    public void printPerson()
    {
        System.out.println( "Printing Person:" + "Name = " + name ) ;
    }

}

//----------------------------------------------------------------------------------------------------------

interface CheckPerson
{
    boolean test(Person p);
}

//----------------------------------------------------------------------------------------------------------

public class func3
{
   //----------------------------------------------------------------------------------------------------------

    public static void printPersons(List<Person> roster,  Predicate<Person> tester )
    {
		tester = tester.negate() ;
        for (Person p : roster)
        {
            if (tester.test(p))
            {
                p.printPerson();
            }
        } //for
    }

   //----------------------------------------------------------------------------------------------------------

   public static void main( String args[] )
    {
       System.out.println( "Inside main"    ) ;
       List<Person> roster1 = new Vector<Person>() ;
       Person p1= new Person() ;
       p1.name = "Ajay" ; p1.age = 20 ; p1.gender = Person.Sex.MALE ;
       roster1.add( p1 ) ;

        p1= new Person() ;
        p1.name = "Timothy" ; p1.age = 24 ; p1.gender = Person.Sex.MALE ;
        roster1.add( p1 ) ;

       // roster1.forEach(System.out::println);

       printPersons( roster1, (personObj) -> personObj.getAge()> 20  ) ;

    }

  //----------------------------------------------------------------------------------------------------------

}