C# struct
In C#, struct is a value type and it does not support inheritance. so struct members can not be declared as protected. You can have constructor in struct. You can have another class as a reference type member variable.
In the given example code, we have a struct called CData and it has got two data members. One is the integer and another one is an array of Shape class. It has got a constructor method which will take the number of Shape objects as one argument.
Source Code
using System;
using System.Collections.Generic;
using System.Text;
namespace CSharpExample
{
class Shape
{
public Shape()
{
System.Console.WriteLine("Shape");
}
public virtual void draw()
{
System.Console.WriteLine("Drawing Shape");
}
}
class Triangle : Shape
{
public int a, b, c;
public Triangle(int a, int b, int c)
{
this.a = a;
this.b = b;
this.c = c;
System.Console.WriteLine("Triangle: " + a.ToString() + " " + b.ToString() + " " + c.ToString());
}
public Triangle()
{
System.Console.WriteLine("Triangle");
}
public override void draw()
{
System.Console.WriteLine("Drawing Triangle");
}
}
struct CData
{
public int m;
public Shape[] objects;
public CData(int count)
{
m = 0;
objects = new Shape[count];
}
}
class InheritanceSample
{
static void Main()
{
CData data = new CData(2);
data.objects[0] = new Shape();
data.objects[1] = new Triangle(10, 20, 30);
System.Console.WriteLine("\n\nNow Drawing Objects\n");
for (int i = 0; i < 2; i++)
data.objects[i].draw();
System.Console.WriteLine("\n");
}
}
}
Output
Shape
Shape
Triangle: 10 20 30
Now Drawing Objects
Drawing Shape
Drawing Triangle
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