Question

I’ve just started reading Microsoft .NET development. It includes lessons/labs using VB and/or C#. Now I got through the first lab using VB and am going to now do it in C#. I have copied everything out exactly (I’m pretty sure) but I get

Expected class, delegate, enum, interface, or struct

I think I should be getting a CMD saying

Tony Allen, age 32

Could anybody point out my problem here? I’m a back-end web developer (PHP) so I know about coding, I’m just new to this language (:

If you are going to edit the code below, could you please let me know what changes you made and why you made them? The more explaination the better!

Thanks!

C#

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

namespace ConsoleApplication1
{
    struct Person{
        public string firstName;
        public string lastName;
        public int age;
    }
    public Person(string _firstName, string _lastName, int _age){
        firstName = _firstName;
        lastName = _lastName;
        age = _age;
    }
    public override string toString(){
        return firstName + " " + lastName + ", age " + age;
    }
    class Program{
        static void Main(string[] args){
            Person p = new Person("Tony", "Allen", 32);
            Console.WriteLine(p);
        }
    }
}

Answer 1

Move struct initializer into struct definition. Same with other members.

  struct Person{
        public string firstName;
        public string lastName;
        public int age;

        public Person(string _firstName, string _lastName, int _age)
        {
            firstName = _firstName;
            lastName = _lastName;
            age = _age;
        }

        public override string ToString(){
            return firstName + " " + lastName + ", age " + age;
        }
    }

In C# we declare members inside class/struct definition, not like this done in C++. Please read this msdn guide on classes and structs in C#.