AllMetanitLessons/ClassesAndObjects/OBJECTmethoods/AllMethoods.java - master - GermanezZ/JavaExercises

AllMetanitLessons/ClassesAndObjects/OBJECTmethoods/AllMethoods.java
155 строк3 KB
germa
Уроки по Metanit
04 дек 2024, 20:39
04 дек 2024, 20:3948d575a
package AllMetanitLessons.ClassesAndObjects.OBJECTmethoods;



import java.util.Objects;

public class AllMethoods {

    public static void main(String[] args) {

/*
        Person person = new Person("Tom");
        Person person1 = new Person("Bob");
        System.out.println(person.toString());
        System.out.println(person.getClass());
        System.out.println(person.hashCode());
        System.out.println(person.equals(person1));
        System.out.println(person instanceof Person);
        Employer employer = new Employer("Nun");
        System.out.println(employer.equals(person));

    }
}

class Person{

    private String name;

    Person(String name){
        this.name = name;
    }

    public String getName() {
        return name;
    }

    @Override
    public String toString() {
        return "Person " + name + '\n';
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Person person = (Person) o;
        return Objects.equals(name, person.name);
    }

    @Override
    public int hashCode() {
        return Objects.hash(name) * 2;
    }
}

class Employer{

    private String name;

    Employer(String name){
        this.name = name;
    }

    public String getName() {
        return name;
    }
}*/

        Person Bob = new Person("Bob",31);
        Person Bob2 = new Person("Bob2",12);
        System.out.println(Bob2.toString());
        System.out.println(Bob2);
        if (Bob.equals(Bob2)){
            System.out.println("Equals True");
        }




    }

}


class Person{

    private String name;

    private int age;

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


    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Person person = (Person) o;
        return age == person.age && Objects.equals(name, person.name);
    }

    @Override
    public int hashCode() {
        return Objects.hash(name, age)+2047;
    }
}

class Emlpoyee{

    private String name;

    public Emlpoyee(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Emlpoyee emlpoyee = (Emlpoyee) o;
        return Objects.equals(name, emlpoyee.name);
    }

    @Override
    public int hashCode() {
        return Objects.hash(name);
    }
}