Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.time.LocalDate;
import java.time.Month;
import java.util.Arrays;
import java.util.List;

public class Main {
    public static void main(String[] args) {
        List<Employee> persons = Employee.persons();

        // Check if all persons are males
        boolean allMales = persons.stream().allMatch(Employee::isMale);
        System.out.println("All  males: " + allMales);

        // Check if any person was born in 1971
        boolean anyoneBornIn1971 = persons.stream().anyMatch(p -> p.getDob().getYear() == 1971);
        System.out.println("Anyone born  in 1971:  " + anyoneBornIn1971);

    }
}

class Employee {
    public static enum Gender {
        MALE, FEMALE
    }

    private long id;
    private String name;
    private Gender gender;
    private LocalDate dob;
    private double income;

    public Employee(long id, String name, Gender gender, LocalDate dob, double income) {
        this.id = id;
        this.name = name;
        this.gender = gender;
        this.dob = dob;
        this.income = income;
    }

    public boolean isMale() {
        return this.gender == Gender.MALE;
    }

    public LocalDate getDob() {
        return dob;
    }

    public static List<Employee> persons() {
        Employee p1 = new Employee(1, "Jake", Gender.MALE, LocalDate.of(1971, Month.JANUARY, 1), 2343.0);
        Employee p2 = new Employee(2, "Jack", Gender.MALE, LocalDate.of(1972, Month.JULY, 21), 7100.0);
        Employee p3 = new Employee(3, "Jane", Gender.FEMALE, LocalDate.of(1973, Month.MAY, 29), 5455.0);
        Employee p4 = new Employee(4, "Jode", Gender.MALE, LocalDate.of(1974, Month.OCTOBER, 16), 1800.0);
        Employee p5 = new Employee(5, "Jeny", Gender.FEMALE, LocalDate.of(1975, Month.DECEMBER, 13), 1234.0);
        Employee p6 = new Employee(6, "Jason", Gender.MALE, LocalDate.of(1976, Month.JUNE, 9), 3211.0);

        List<Employee> persons = Arrays.asList(p1, p2, p3, p4, p5, p6);

        return persons;
    }

    @Override
    public String toString() {
        String str = String.format("(%s, %s,  %s,  %s,  %.2f)\n", id, name, gender, dob, income);
        return str;
    }
}