如何重写compareto方法来排序员工的工资？

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class Employee implements Comparable<Employee> {
    private String name;
    private double salary;

    public Employee(String name, double salary) {
        this.name = name;
        this.salary = salary;
    }

    public String getName() {
        return name;
    }

    public double getSalary() {
        return salary;
    }

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

    public static void main(String[] args) {
        List<Employee> employees = new ArrayList<>();
        employees.add(new Employee("John", 5000));
        employees.add(new Employee("Alice", 3000));
        employees.add(new Employee("Bob", 4000));

        Collections.sort(employees);

        for (Employee employee : employees) {
            System.out.println(employee.getName() + ": " + employee.getSalary());
        }
    }
}