使用多重排序条件优化数据排序：Java 实现指南

import java.util.*;

class Superhero {
    String name;
    int height;
    String power;
    String weakness;
    boolean originFromEarth;

    public Superhero(String name, int height, String power, String weakness, boolean originFromEarth) {
        this.name = name;
        this.height = height;
        this.power = power;
        this.weakness = weakness;
        this.originFromEarth = originFromEarth;
    }

    public String getName() {
        return name;
    }

    public int getHeight() {
        return height;
    }

    public String getPower() {
        return power;
    }

    public String getWeakness() {
        return weakness;
    }

    public boolean isOriginFromEarth() {
        return originFromEarth;
    }

    @Override
    public String toString() {
        return "Superhero{" +
                "name='" + name + '\'' +
                ", height=" + height +
                ", power='" + power + '\'' +
                ", weakness='" + weakness + '\'' +
                ", originFromEarth=" + originFromEarth +
                '}';
    }
}

public class MultiSort {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        List<Superhero> superheroes = new ArrayList<>();
        superheroes.add(new Superhero("Superman", 190, "Flight", "Kryptonite", true));
        superheroes.add(new Superhero("Batman", 180, "Intelligence", "No powers", true));
        superheroes.add(new Superhero("Wonder Woman", 183, "Strength", "Piercing weapons", true));
        superheroes.add(new Superhero("Martian Manhunter", 201, "Telepathy", "Fire", false));

        System.out.println("""
                1. Sort by name.
                2. Sort by height.
                3. Sort by power.
                4. Sort by weakness.
                5. Sort by origin FROM earth.
                6. Sort by origin NOT from earth.
                """);

        System.out.println("Enter the sorting criteria (e.g., 1 2 for name then height):");
        String userInput = sc.nextLine().toLowerCase();

        String[] userInputs = userInput.split(" ");

        Comparator<Superhero> comparator = null;

        for (String input : userInputs) {
            int choice = Integer.parseInt(input);
            Comparator<Superhero> currentComparator = null;

            switch (choice) {
                case 1:
                    currentComparator = Comparator.comparing(Superhero::getName);
                    break;
                case 2:
                    currentComparator = Comparator.comparingInt(Superhero::getHeight);
                    break;
                case 3:
                    currentComparator = Comparator.comparing(Superhero::getPower);
                    break;
                case 4:
                    currentComparator = Comparator.comparing(Superhero::getWeakness);
                    break;
                case 5:
                    currentComparator = Comparator.comparing(Superhero::isOriginFromEarth, (a, b) -> Boolean.compare(b, a)); //true first
                    break;
                case 6:
                    currentComparator = Comparator.comparing(Superhero::isOriginFromEarth); //false first
                    break;
                default:
                    System.out.println("Invalid choice: " + choice);
                    break;
            }

            if (currentComparator != null) {
                comparator = (comparator == null) ? currentComparator : comparator.thenComparing(currentComparator);
            }
        }

        if (comparator != null) {
            superheroes.sort(comparator);
            System.out.println("Sorted Superheroes:");
            for (Superhero superhero : superheroes) {
                System.out.println(superhero);
            }
        } else {
            System.out.println("No valid sorting criteria provided.");
        }
    }
}