public static void GetNewGreenApple(ref Apple apple)
{
apple = new Apple(apple.weight, Color.Green);
}
static void Main(string[] args)
{
Console.WriteLine("Hello World!");
#region reference types
Console.WriteLine("======= Reference types ========");
Apple redApple = new Apple(10, Color.Red);
Apple theSameRedApple = redApple;
Console.WriteLine($"Weight of the red apple: {redApple.Weight}");
Console.WriteLine($"Weight of the same red apple: {theSameRedApple.Weight}");
redApple.Weight = 15;
Console.WriteLine($"Weight of the red apple after change: {redApple.Weight}");
Console.WriteLine($"Weight of the same red apple after change: {redApple.Weight}");
#endregion
Console.WriteLine();
#region value types
Console.WriteLine("======= Value types ========");
int x = 10;
int y = x;
Console.WriteLine($"Value of x: {x}");
Console.WriteLine($"Value of y: {y}");
x++;
Console.WriteLine($"Value of x after change: {x}");
Console.WriteLine($"Value of y after change: {y}");
#endregion
Console.WriteLine();
#region Use of TotalWeight static method
Console.WriteLine("======== Usage of static TotalWeight method =========");
Apple greenApple = new Apple(20, Color.Green);
List <Apple> apples = new List <Apple>();
apples.Add(redApple);
apples.Add(greenApple);
Console.WriteLine($"Weight of red apple: { redApple.Weight }");
Console.WriteLine($"Weight of green apple: { greenApple.Weight }");
Console.WriteLine($"Total weight of apples: {Apple.TotalWeight(apples)}");
#endregion
Console.WriteLine();
#region Use of out parameter modifiers
Console.WriteLine("======== Use of out modifier =========");
Apple clonedGreenApple;
Apple.CloneApple(greenApple, out clonedGreenApple);
clonedGreenApple.Color = Color.Red;
Console.WriteLine($"Change the color of cloned apple to red: { clonedGreenApple.Color }");
Console.WriteLine($"Color of the original apple remains the same: { greenApple.Color }");
#endregion
Console.WriteLine();
#region Use of ref parameter modifier
Console.WriteLine("========= Use of ref modifier =========");
Apple.GetNewGreenApple(ref redApple);
Console.WriteLine($"The color of new green apple: { redApple.Color }");
#endregion
Console.WriteLine();
#region Use of boxing and unboxing
AppleWithPrice appleWithIntPrice = new AppleWithPrice(20, Color.Green, 30);
AppleWithPrice appleWithFloatPrice = new AppleWithPrice(10, Color.Red, 20.5f);
int intPrice = (int)appleWithIntPrice.Price;
float floatPrice = (float)appleWithFloatPrice.Price;
#endregion
#region Use of static constructor
Console.WriteLine("====== Use of static constructor ========");
StaticConstructorExample staticConstructorExample = new StaticConstructorExample();
StaticConstructorExample staticConstructorExample1 = new StaticConstructorExample();
#endregion
#region Threads
Console.WriteLine("========= Use of threads ==========");
Thread newThread = new Thread(new ThreadStart(RunMeInNewThread));
newThread.Start();
for (int i = 0; i < 5; i++)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("*");
Console.WriteLine(" *");
Console.WriteLine(" *");
Console.WriteLine(" *");
Console.WriteLine(" *");
Thread.Sleep(400);
}
#endregion
}
public static void CloneApple(Apple originalApple, out Apple clonedApple)
{
clonedApple = new Apple(originalApple.weight, originalApple.Color);
}
