C#

Car yourCar = new Car("Blue");
Car myCar = new Car("Red");
yourCar.GloveBox.Add(yourMobile);
if (myCar.GloveBox.Contains(yourMobile))
   throw new UniverseException("How did that happen?");

Car myCar = new Car("Red");
Car herCar = myCar;
herCar.GloveBox.Add(herMobile);
if (myCar.GloveBox.Contains(herMobile))
   Console.WriteLine("Found it dear! You left it in the glovebox again!");

MyPanel panel1 = new MyPanel();
MyPanel temp = panel1;  // same instance!
temp.Controls.Remove(button1); // Removes it from the one and only instance of the panel you have created

int i = 666;
int j = i;
j = j / 2;
Console.WriteLine("{0}:{1}", i, j);

public class MyClass
   {
   public int i;
   }
...
   MyClass m1 = new MyClass;
   m1.i = 666;
   MyClass m2 = m1;
   m2.i = m2.i / 2;
   Console.WriteLine("{0}:{1}", m1.i, m2.i);

public partial class MyCustomPanel : UserControl
{
    public MyCustomPanelSimple()
    {
        InitializeComponent();
    }
}

public partial class MyCustomPanel2 : MyCustomPanel
{
    public MyCustomPanel2()
    {
        InitializeComponent();
    }
}

public MyCustomPanel2()
{
   InitializeComponent();

   TheButton = Controls["customPanelButton1"] as Button;
}

private Button TheButton;

An unhandled exception of type 'System.ComponentModel.LicenseException' occurred in System.dll

// in NameSpace scope
public interface IDimensions
{
    int Height { set; get; }
}

// in NameSpace scope
public class Dimensions : IDimensions
{
    public int Height { set; get; }

    public Dimensions(int height)
    {
        Height = height;
    }
}

// then create an instance of the Class

// in Form scope: leave off the 'public access modifier if you define the instance in a Method
public Dimensions MyDimensions = new Dimensions(3);

// then you can set the 'Height property at any time

// in some Method or EventHandler
MyDimensions.Height = 12;

public interface ISettings
{
    string Color { get; set; }
}

public interface IDimensions
{
    int Height { set; get; }
  
    ISettings Settings { get; set; }
}

public class Dimensions : IDimensions
{
    public int Height { set; get; }
 
    public Dimensions(int height)
    {
        Height = height;
    }
}

public interface ISettings
{
    string Color { get; set; }
}
 
public interface IDimensions
{
     Settings objSettings = new Settings();

    int Height { set; get; }
  
    ISettings Settings 
    { 
        get
        {
            return objSettings; 
        }
        set{ }
}
 
public class Settings : ISettings
{
   string Color { get; set; }
}

public class Dimensions : IDimensions
{
    public int Height { set; get; }
 
    public Dimensions(int height)
    {
        Height = height;
    }
}

public interface ISettings
{
    string Color { get; set; }
}
 
public interface IDimensions
{
    int Height { set; get; }
}

public class Settings : ISettings
{
   string Color { get; set; }
}

0011 & 1010

0011 | 1010

newfont = FontStyle.Bold | FontStyle.Italic;

existingStyle & ~FontStyle.Bold