如何使用Java实现商品价格排序功能

<pre class="brush:php;toolbar:false;">public class Product {
    private String name;
    private double price;

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

    public String getName() {
        return name;
    }

    public double getPrice() {
        return price;
    }

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

<pre class="brush:php;toolbar:false;">import java.util.*;

List<Product> products = new ArrayList<>();
products.add(new Product("手机", 2999.0));
products.add(new Product("耳机", 199.5));
products.add(new Product("电脑", 5999.9));

// 按价格升序排序
Collections.sort(products, Comparator.comparing(Product::getPrice));

// 输出结果
products.forEach(System.out::println);

<pre class="brush:php;toolbar:false;">// 升序
List<Product> sortedAsc = products.stream()
    .sorted(Comparator.comparing(Product::getPrice))
    .toList();

// 降序
List<Product> sortedDesc = products.stream()
    .sorted(Comparator.comparing(Product::getPrice).reversed())
    .toList();

<pre class="brush:php;toolbar:false;">List<Product> sorted = products.stream()
    .sorted(Comparator.comparing(Product::getPrice)
                .thenComparing(Product::getName))
    .toList();

<pre class="brush:php;toolbar:false;">Product{name='耳机', price=199.5}
Product{name='手机', price=2999.0}
Product{name='电脑', price=5999.9}