Question

I'm trying to finish debugging this C# problem. It will compile, but throws a warning: warning CS0649: Field `DebugTen2.Street.name' is never assigned to, and will always have its default value `null'. I've tried a few ways to fix it, but the street names are still not coming out properly.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace DebugTen2
{
class Class
{
public static void Main()
{

OneWayStreet oak = new OneWayStreet("Oak Avenue", "east");
TwoWayStreet elm = new TwoWayStreet("Elm Street", "south");
Console.WriteLine("On " + oak.Name + " " + oak.MakeUTurn());
Console.WriteLine("On " + oak.Name + " " + oak.MakeUTurn());
Console.WriteLine("On " + elm.Name + " " + elm.MakeUTurn());
Console.WriteLine("On " + elm.Name + " " + elm.MakeUTurn());
Console.ReadKey();
}
}

abstract class Street
{
public string name;
public string direction;
public Street(string name, string Direction)
{
name = Name;
direction = Direction;
}
public string Name
{
get
{
return name;
}
}
public string Direction
{
get
{
return direction;
}
}
public abstract string MakeUTurn();
}
class OneWayStreet : Street
{
public OneWayStreet(string name, string direction)
: base(name, direction)
{
}
public override string MakeUTurn()
{
string temp = "U Turn is illegal! Was going and still going " + direction;
return temp;
}
}
class TwoWayStreet : Street
{
public TwoWayStreet(string name, string direction)
: base(name, direction)
{
}
public override string MakeUTurn()
{
string wasGoing = Direction;
string[] directions = { "north", "south", "east", "west" };
string[] oppDirections = { "south", "north", "west", "east" };
for (int x = 0; x < directions.Length; ++x)
{
if (direction.Equals(directions[x]))
{
direction = oppDirections[x];
x = directions.Length;
}
}
string temp = "U Turn successful. Was going " + wasGoing +
". Now going " + direction;
return temp;
}

}

}

Answer 1

/**
*C sharp program is demonstrates the Street and OneWayStreet classes.
* The changes made to the Stree class are shown in bold letters.
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace DebugTen2
{
    class Class
    {
        public static void Main()
        {

            OneWayStreet oak = new OneWayStreet("Oak Avenue", "east");
            TwoWayStreet elm = new TwoWayStreet("Elm Street", "south");
            Console.WriteLine("On " + oak.Name + " " + oak.MakeUTurn());
            Console.WriteLine("On " + oak.Name + " " + oak.MakeUTurn());
            Console.WriteLine("On " + elm.Name + " " + elm.MakeUTurn());
            Console.WriteLine("On " + elm.Name + " " + elm.MakeUTurn());
            Console.ReadKey();
        }
    }
}

------------------------------------------------------------------------------------------

//Street.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace DebugTen2
{
    abstract class Street
    {
        public string name;
        public string direction;
       /*Get values of name and direction for the constructor of Stree class*/
        public Street(string name, string direction)
       {
           //Set values for name and direction of this class
            this.name = name;
            this.direction = direction;
       }
        public string Name
        {
           //Create set method for Name property
            set { name = value; }
           get{return name;}
        }
        public string Direction
        {
           //Create set method for Direction property
            set { name = value; }
           get{return direction;}
        }
        public abstract string MakeUTurn();
    }
}

------------------------------------------------------------------------------------------

//OneWayStreet.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace DebugTen2
{
    class OneWayStreet : Street
    {
        public OneWayStreet(string name, string direction)
            : base(name, direction)
        {
        }
        public override string MakeUTurn()
        {
            string temp = "U Turn is illegal! Was going and still going " + direction;
            return temp;
        }
    }
    class TwoWayStreet : Street
    {
        public TwoWayStreet(string name, string direction)
            : base(name, direction)
        {
        }
        public override string MakeUTurn()
        {
            string wasGoing = direction;
            string[] directions = { "north", "south", "east", "west" };
            string[] oppDirections = { "south", "north", "west", "east" };
            for (int x = 0; x < directions.Length; ++x)
            {
                if (direction.Equals(directions[x]))
                {
                    direction = oppDirections[x];
                    x = directions.Length;
                }
            }
            string temp = "U Turn successful. Was going " + wasGoing +
            ". Now going " + direction;
            return temp;
        }

    }
}

------------------------------------------------------------------------------------------

Sample Output:

On Oak Avenue U Turn is illegal! Was going and still going east On Oak Avenue U Turn is illegal! Was going and still going On Elm Street U Turn successful. Was going south. Now going north On Elm Street U Turn successful. Was going north. Now going south east