static void Main(string[] args)
{
string s = "hello interfaces";
OperatingSystem os = new OperatingSystem(PlatformID.MacOSX, new Version());
MyCustomInterface pObj = new Program();
ICloneableDemo(pObj);
ICloneableDemo(s);
ICloneableDemo(os);
Console.WriteLine("working with interfaces");
Console.WriteLine(((Program)pObj).i);
try
{
conn = new System.Data.SqlClient.SqlConnection(
"Data Source=naynish-pc\\sqlexpress; Initial Catalog=TestData; UID = sa; PWD = Bhairav@12; Integrated Security=false");
conn.Open();
ICloneableDemo(conn);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
finally
{
conn.Close();
}
IEmployeePrototype emp1 = new Employee();
emp1.ShowDetails();
Console.WriteLine();
AbstractEmployeeBaseClass[] abcArr = new AbstractEmployeeBaseClass[]
{
new Founder(),
new VicePresident(1000, 200000),
new Programmer(48090, 85000)
};
foreach (AbstractEmployeeBaseClass item in abcArr)
{
if (item is ISalary)
{
//if it implements ISalary then checking what specific type implements ISalary and filling the dictionary
//with more entries
if (item is VicePresident)
{
((VicePresident)item).Dictionary.Add(1001, 250000);
((VicePresident)item).Dictionary.Add(1002, 300000);
}
else if (item is Programmer)
{
//Programmer implements the ISalary interface explicitly
//so call the members with the reference of the interface
((ISalary)item).Dictionary.Add(48091, 90000);
((ISalary)item).Dictionary.Add(48092, 95000);
InterfacesAsReturnValues().Dictionary.Add(48093, 120000);
}
((ISalary)item).ShowSalaryDetails();
}
else
{
Console.WriteLine(item.GetType() + " please implement ISalary interface");
}
}
ISalary[] arrSal = new ISalary[]
{
new My(90, 38000),
new VicePresident(91, 90000),
new Programmer(92, 65000)
};
Console.WriteLine("\narray of interfacess");
foreach (ISalary item in arrSal)
{
item.ShowSalaryDetails();
}
NameClash nc = new NameClash();
//nc.Display();
//call display with any interface's reference, shared Display() logic would be called.
//since explicitly implemented interface members are private they are no longer available from object level
//use interface reference
((IDisplayConsole)nc).Display();
((IDisplayWebForms)nc).Display();
Console.WriteLine("\n");
EnumerableType et = new EnumerableType();
foreach (Product item in et)
{
Console.WriteLine("Id: {0}, Name: {1}, Price: {2}",item.Id, item.Name, item.Price);
}
//manually working with IEnumerator
Console.WriteLine("\nmanual IEnumerator");
IEnumerable ieTr = new EnumerableType();
IEnumerator ieColl = ieTr.GetEnumerator();
for (int i = 0; i < ((EnumerableType)ieTr).arrProd.Length; i++)
{
ieColl.MoveNext();
Console.WriteLine("Id: {0}, Name: {1}, Price: {2}", ((Product)ieColl.Current).Id, ((Product)ieColl.Current).Name, ((Product)ieColl.Current).Price);
}
Console.WriteLine("\nnamed iterators");
//working with named iterators
foreach (Product item in ((EnumerableType)ieTr).WorkingWithNamedIterators())
{
Console.WriteLine("Id: {0}, Name: {1}, Price: {2}", item.Id, item.Name, item.Price);
}
//MyCustomCollection
Console.WriteLine("\nMyCustomCollection");
IEnumerable ieMy = new MyCustomCollection();
foreach (KeyValuePair<Object, Object> item in ieMy)
{
Console.WriteLine("key: {0}, value: {1}", item.Key, item.Value);
}
Object[] valCollectionSave = new Object[((Dictionary<Object, Object>.ValueCollection)((MyCustomCollection)ieMy).DisplayJustValues()).Count];
((Dictionary<Object, Object>.ValueCollection)((MyCustomCollection)ieMy).DisplayJustValues()).CopyTo(valCollectionSave, 0);
foreach (Object item in valCollectionSave)
{
Console.WriteLine("value: {0}", item);
}
Console.WriteLine("\ndictionary using foreach");
foreach (KeyValuePair<Object, Object> item in ((MyCustomCollection)ieMy).UsingForeachInternally())
{
Console.WriteLine("key: {0}, value: {1}", item.Key, item.Value);
}
//shallow copy
BitmapPoint point1 = new BitmapPoint(100.12, 200.36, 300.89);
BitmapPoint point2 = point1;
//internal values types have an independent copy
point2.x = 1000;
point2.y = 2000;
//internal reference is copied and now both of them point to the same memory location
point2.internalRef.StartPoint = 5000;
Console.WriteLine("\npoint1" + point1);
Console.WriteLine("\npoint2" + point2);
//deep copy: created a new instance of BitmapPoint and did a member by member independent copy
BitmapPoint p1DeepCopy = new BitmapPoint(10.46, 20.89, 45.00);
BitmapPoint p2DeepCopy = (BitmapPoint)(((ICloneable)p1DeepCopy).Clone()); //(BitmapPoint)p1DeepCopy.ShallowCopy(); //if you want to perform a shallow copy
p2DeepCopy.x = 100;
p2DeepCopy.y = 200;
p2DeepCopy.internalRef.StartPoint = 50;
Console.WriteLine("\npoint1 deep copy: " + p1DeepCopy);
Console.WriteLine("\npoint2 deep copy: " + p2DeepCopy);
ComparableFruit[] arrFruit = new ComparableFruit[]
{
new ComparableFruit("apple", 45),
new ComparableFruit("mango", 23),
new ComparableFruit("watermelon", 60),
new ComparableFruit("banana", 12),
new ComparableFruit("cherry", 67)
};
Array.Sort(arrFruit);
foreach (ComparableFruit item in arrFruit)
{
Console.WriteLine("fruit: {0}, price: {1}", item.Name, item.Price);
}
Console.WriteLine("\nMultiple Sort Orders - Sort by fruit name");
//implement each class for each sort order
Array.Sort(arrFruit, new SortByName());
foreach (ComparableFruit item in arrFruit)
{
Console.WriteLine("fruit: {0}, price: {1}", item.Name, item.Price);
}
Console.WriteLine("\nMultiple Sort Orders - Sort by fruit price");
Array.Sort(arrFruit, new SortByPrice());
foreach (ComparableFruit item in arrFruit)
{
Console.WriteLine("fruit: {0}, price: {1}", item.Name, item.Price);
}
Console.WriteLine("\n");
Array.Sort(arrFruit, ComparableFruit.SortOrder(ComparableFruit.SortBy.FruitName));
foreach (ComparableFruit item in arrFruit)
{
Console.WriteLine("fruit: {0}, price: {1}", item.Name, item.Price);
}
Console.WriteLine("\n");
Array.Sort(arrFruit, ComparableFruit.SortOrder(ComparableFruit.SortBy.FruitPrice));
foreach (ComparableFruit item in arrFruit)
{
Console.WriteLine("fruit: {0}, price: {1}", item.Name, item.Price);
}
//last sorting using a readonly property
Console.WriteLine("\nreadonly sort");
Array.Sort(arrFruit, ComparableFruit.SortByName);
foreach (ComparableFruit item in arrFruit)
{
Console.WriteLine("fruit: {0}, price: {1}", item.Name, item.Price);
}
Console.ReadLine();
}