HashSet example with equals and hashCode overriding

Main.java

package ru.gordinmitya;

import java.util.*;

class Product {
    private String name;
    private int price;

    Product(String name, int price) {
        this.name = name;
        this.price = price;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (!this.getClass().equals(obj.getClass()))
            return false;
        Product other = (Product) obj;
        return this.name.equals(other.name)
                && this.price == other.price;
    }

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

    @Override
    public String toString() {
        return "{" +
                "name='" + name + '\'' +
                ", price=" + price +
                '}';
    }
}

public class Main {

    public static void main(String[] args) {
        Set<Product> productSet = new HashSet<>();

        productSet.add(new Product("Масло", 100));
        productSet.add(new Product("Масло", 101));

        productSet.add(new Product("Хлеб", 25));

        System.out.println(productSet);
    }
}