using class fields from other classes

Question

I\'m quite new to C# and OOP so please bear with me.

I have two classes with different namespaces:

namespace Class1

public class class1
{
 public do         


        

Answer 1

Everybody here gave you the right answer for accessing the fields, but in the case of area and volume you are approaching the problem in a procedural, not OO way. This is an example showing you how to access the internal fields, and an OO way to approach this kind of problems:

public abstract class Shape
{
    public abstract double Area();
    public abstract double Perimeter();
}

public class Circle : Shape
{
    public double Radius;

    public override double Perimeter()
    {
        return 2 * Radius * Math.PI;
    }

    public override double Area()
    {
        return Radius * Radius * Math.PI;
    }
}

public class Square : Shape
{
    public double Side;

    public override double Perimeter()
    {
        return Side * 4;
    }

    public override double Area()
    {
        return Side * Side;
    }
}

public abstract class Solid
{
    public abstract double Volume();
}

public abstract class CircleBaseSolid : Solid
{
    protected Circle Base = new Circle();

    public double Radius
    {
        get { return Base.Radius; }
        set { Base.Radius = value; }
    }

    public double Height;
}

public class Cylinder : CircleBaseSolid
{
    public override double Volume()
    {
        return Base.Area() * Height;
    }
}

public class Cone : CircleBaseSolid
{
    public override double Volume()
    {
        return Base.Area() * Height / 3;
    }
}

public abstract class SquareBaseSolid : Solid
{
    protected Square Base = new Square();

    public double Side
    {
        get { return Base.Side; }
        set { Base.Side = value; }
    }

    public double Height;
}

public class SquareParallelepiped : SquareBaseSolid
{
    public override double Volume()
    {
        return Base.Area() * Height;
    }
}

public class SquarePyramid : SquareBaseSolid
{
    public override double Volume()
    {
        return Base.Area() * Height / 3;
    }
}