W3School TIY Editor

import java.util.ArrayList; import java.util.Collections; // 定义汽车类 class Car { public String brand; public String model; public int year; public Car(String b, String m, int y) { brand = b; model = m; year = y; } } public class Main { public static void main(String[] args) { // 创建汽车列表 ArrayList<Car> myCars = new ArrayList<Car>(); myCars.add(new Car("BMW", "X5", 1999)); myCars.add(new Car("Honda", "Accord", 2006)); myCars.add(new Car("Ford", "Mustang", 1970)); // 使用lambda表达式对汽车排序 Collections.sort(myCars, (obj1, obj2) -> { Car a = (Car) obj1; Car b = (Car) obj2; if (a.year < b.year) return -1; if (a.year > b.year) return 1; return 0; }); // 显示汽车信息 for (Car c : myCars) { System.out.println(c.brand + " " + c.model + " " + c.year); } } }