AllMetanitLessons/Collections/Set/ComparableProg.java - master - GermanezZ/JavaExercises

AllMetanitLessons/Collections/Set/ComparableProg.java
138 строк3 KB
germa
Уроки по Metanit
04 дек 2024, 20:39
04 дек 2024, 20:3948d575a
package AllMetanitLessons.Collections.Set;


import org.jetbrains.annotations.NotNull;

import javax.imageio.plugins.jpeg.JPEGImageWriteParam;
import java.io.IOException;
import java.time.Period;
import java.util.Comparator;
import java.util.TreeSet;

public class ComparableProg   {

    public static void main(String[] args) {

       /* Comparator<Person> comp = new PersonNameComp().thenComparing(new PersonAgeComp());
        TreeSet<Person> people = new TreeSet<>(comp);
        people.add(new Person("Tom",21));
        people.add(new Person("Ann",18));
        people.add(new Person("Bob",50));

        for (Person p : people) {
            System.out.println(p.getName());
        }

    }

}

class Person implements  Comparable<Person>{

    private final String name;
    private final int age;

    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    @Override
    public int compareTo(Person o) {
        return name.compareTo(o.getName());
    }
}
 //     ИЛИ ТАК

class PersonNameComp implements  Comparator<Person>{

    @Override
    public int compare(Person o1, Person o2) {
        return o1.getName().compareTo(o2.getName());
    }

}

class PersonAgeComp implements  Comparator<Person>{

    @Override
    public int compare(Person o1, Person o2) {
        return Integer.compare(o1.getAge(), o2.getAge());*/

        try {
            Comparator<Person> pcomp = new PersonNameComp().thenComparing(new PersonAgeComp());
            TreeSet<Person> people = new TreeSet<>(pcomp);
            people.add(new Person("German",21));
            people.add(new Person("Bill",13));
            people.add(new Person("German",20));
            people.add(new Person("Tim",44));
            people.add(new Person("Tomas",78));
            people.add(new Person("Tom",22));
            people.add(new Person("German", 33));



            for (Person p: people){
                System.out.println(p.getName() + " " + p.getAge());
            }
        }catch (Exception exc){
            System.out.println(exc.getMessage());
        }

    }

}

class Person implements Comparable<Person>{

    private String name;
    private int age;

    public Person(String name, int age) throws Exception {
        if (!(name).isEmpty()){
            this.name = name;
        }else throw new Exception("Введите корректное имя человека ");

        if (age > 0 && age < 120){
            this.age = age;
        }else throw new Exception("Введите корректный возраст у " + name);

    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    @Override
    public int compareTo(@NotNull Person o) {
        return name.compareTo(o.getName());
    }
}

class PersonNameComp implements Comparator<Person>{


    @Override
    public int compare(Person o1, Person o2) {
        return o1.getName().compareTo(o2.getName());
    }
}
class PersonAgeComp implements Comparator<Person>{

    @Override
    public int compare(Person o1, Person o2) {
        return Integer.compare(o1.getAge(), o2.getAge());
    }
}