[Java] [Clase y objeto] Ordenar lista de objetos de lista

Cree una lista, agregue elementos de objeto y ordene según los atributos de los objetos.

Empleado:

package com.itheima1;
public class Employee implements Comparable<Employee>{
    
    
    private int id;
    private String name;
    private int age;

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

    @Override
    public int compareTo(Employee o) {
    
    
        if(id > o.id){
    
    
            return 1;
        }
        else if(id < o.id){
    
    
            return -1;
        }
        return 0;
    }

    public int getId() {
    
    
        return id;
    }

    public String getName() {
    
    
        return name;
    }

    public int getAge() {
    
    
        return age;
    }

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

MyCompare:

package com.itheima1;

import java.util.Comparator;

public class MyCompare implements Comparator<Employee> {
    
    
    @Override
    public int compare(Employee o1, Employee o2) {
    
    
       if(o1.getName().compareTo(o2.getName()) > 0){
    
    
           return 1;
       }
       else if (o1.getName().compareTo(o2.getName()) < 0){
    
    
           return -1;
       }
       else
           return 0;
    }
}

Principal:

package com.itheima1;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class Main {
    
    
    public static void main(String[] args) {
    
    
        List<Employee> list = new ArrayList<>();
        list.add(new Employee(3,"Java",21));
        list.add(new Employee(2,"C++",34));
        list.add(new Employee(1,"Python",15));
        System.out.println("排序前：");
        for(Employee employee : list){
    
    
            System.out.println(employee);
        }
        System.out.println("以id为标准排序后：");
        Collections.sort(list);
        for(Employee employee : list){
    
    
            System.out.println(employee);
        }
        System.out.println("以name为标准排序后：");
        Collections.sort(list,new MyCompare());
        for(Employee employee : list){
    
    
            System.out.println(employee);
        }
    }
}