如何在LINQ中编写这段代码？

using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main()
    {
        // 创建学生对象集合
        List<Student> students = new List<Student>
        {
            new Student { Name = "Alice", Age = 20 },
            new Student { Name = "Bob", Age = 19 },
            new Student { Name = "Charlie", Age = 21 },
            new Student { Name = "David", Age = 18 }
        };

        // 使用LINQ进行查询和排序
        var result = from student in students
                     where student.Age > 18
                     orderby student.Name
                     select student;

        // 输出结果
        foreach (var student in result)
        {
            Console.WriteLine(student.Name + " - " + student.Age);
        }
    }
}

class Student
{
    public string Name { get; set; }
    public int Age { get; set; }
}