1. namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
RefactorExtractMetod();
RefactorExtractMetod();
Console.ReadLine();
}
private static void RefactorExtractMetod()
{
Console.Title = "Application";
Console.ForegroundColor = ConsoleColor.Yellow;
Console.BackgroundColor = ConsoleColor.Blue;
Console.WriteLine("****************************************");
Console.WriteLine("*********** Welcome ********************");
Console.WriteLine("****************************************");
Console.BackgroundColor = ConsoleColor.Black;
}
}
}
namespace ConsoleApplication3
{
class Program
{
public static int Main(string[] args)
{

2. for (int i = 0; i < args.Length; i++)
Console.WriteLine("Arg: {0}", args[i]);
return 0;
}
}
}
namespace ConsoleApplication4
{

3. class Program
{
static void Main(string[] args)
{
Console.WriteLine("C format: {0:C}", 99989.987);
Console.WriteLine("D6 format: {0:D6}", 99999);
Console.WriteLine("E format: {0:E}", 99999.76543);
Console.WriteLine("F3 format: {0:F3}", 99999.9999);
Console.WriteLine("N format: {0:N}", 99999);
Console.WriteLine("X format: {0:X}", 99999);
Console.WriteLine("x format: {0:x}", 99999);
Console.ReadLine();
}
}
}
namespace ConsoleApplication5
{
class StringFormat
{
static void Main(string[] args)
{
string FormatStr;
FormatStr = String.Format("Don't you wish you had {0:c} in your account?", 99989.987);
Console.WriteLine(FormatStr);
Console.ReadLine();

4. }
}
}
namespace ConsoleApplication7
{
class Program
{
static void Main(string[] args)
{
string[] books = { "complex algoritm", "do you remember", "C and C++" };
foreach (string s in books)
Console.WriteLine(s);
int[] myints = { 10, 20, 30, 40 };
foreach (int i in myints)
Console.WriteLine(i);
Console.ReadLine();
}
}
}
namespace ConsoleApplication8
{
class Program
{

5. static void Main(string[] args)
{
string userIsDone = "";
do
{
Console.Write("Are you done? [yes] [no]: ");
userIsDone = Console.ReadLine();
Console.WriteLine("In while loop");
} while (userIsDone.ToLower() != "yes");
}
}
}
namespace ConsoleApplication9
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("1 [C#], 2 [VB]");
Console.Write("please pick you language preference: ");
string langChoice = Console.ReadLine();
int n = int.Parse(langChoice);
switch (n)
{
case 1:
Console.WriteLine("Good choice, C# is a fine language");
break;
case 2:
Console.WriteLine("Good choice, VB is a fine language");
break;

6. default:
Console.WriteLine("will .. good luck with that ");
break;
}
Console.ReadLine();
}
}
namespace EnmiinJishee
{
class Enum1
{
enum EmpType
{
Boss=1,
Manager=2,
Ahlagch=3,
Ajilchin=4,
}
static void Main(string[] args)
{
Array obj = Enum.GetValues(typeof(EmpType));
Console.WriteLine("This enum has {0} members.", obj.Length);
foreach (EmpType e in obj)
{
Console.Write("string Name: {0},", e.ToString());
Console.Write("int: ({0}),",Enum.Format(typeof(EmpType),e,"D"));
Console.Write("hex: ({0})n,", Enum.Format(typeof(EmpType), e, "X"));
Console.ReadLine();
}

7. }
}
}
namespace ObjectMethods
{
class Person
{
public Person(string fname, string lname, string s, byte a)
{
firstname = fname;
lastname = lname;
SSN = s;
age = a;
}
public Person() { }
public string firstname;
public string lastname;
public string SSN;
public byte age;
static void Main(string[] args)
{
Console.WriteLine("*******Working with Object***********n");
Person fred = new Person("Fred", "Clark", "111 - 11 - 1111", 20);
Console.WriteLine("-> Fred.Tostring: {0}",fred.ToString());
Console.WriteLine("-> Fred.GetHashCode: {0}", fred.GetHashCode());

8. Console.WriteLine("-> Fred's base class: {0}", fred.GetType());
Person p2 = fred;
Object o = p2;
if (o.Equals(fred) && p2.Equals(o))
Console.WriteLine("fred, p2,& o are referencing the same object.");
Console.ReadLine();
}
}
}
namespace ObjectMethods
{
class Person
{
public override string ToString()
{
StringBuilder sb = new StringBuilder();
sb.AppendFormat("FirstName={0}", this.firstname);
sb.AppendFormat("LastName={0}", this.lastname);
sb.AppendFormat("SSN={0}", this.SSN);
sb.AppendFormat("Age={0}", this.age);
return sb.ToString();
}
public Person(string fname, string lname, string s, byte a)
{
firstname = fname;

9. lastname = lname;
SSN = s;
age = a;
}
public string firstname;
public string lastname;
public string SSN;
public byte age;
static void Main(string[] args)
{
Console.WriteLine("*******Working with Object***********n");
Person fred = new Person("Fred ", "Clark ", "111 - 11 - 1111 ", 20);
Console.WriteLine("-> Fred.Tostring: {0}", fred.ToString());
Console.WriteLine("-> Fred.GetHashCode: {0}", fred.GetHashCode());
Console.WriteLine("-> Fred's base class: {0}", fred.GetType());
Person p2 = fred;
Object o = p2;
if (o.Equals(fred) && p2.Equals(o))
Console.WriteLine("fred, p2,& o are referencing the same object.");
Console.ReadLine();
}
}
}
namespace ConsoleApplication19
{
class Program

10. {
static void Main(string[] args)
{
string Sdate = "2010-11-10";
DateTime CurrentDate = DateTime.Now;
Console.WriteLine(Convert.ToString(DateTime.Now));
Console.WriteLine(CurrentDate.ToString());
CurrentDate = Convert.ToDateTime(Sdate);
Console.WriteLine(CurrentDate);
}
}
}
namespace ConsoleApplication28
{
class Program
{
static void Main(string[] args)
{
//string sdate = "2010-02-21";
//CurrDate = Convert.ToDateTime(sdate);
DateTime currdate = DateTime.Now;
Console.WriteLine("Date D format:"+currdate.ToString("D"));
Console.WriteLine("Date d format:" + currdate.ToString("d"));
Console.WriteLine("Date F format:" + currdate.ToString("F"));
Console.WriteLine("Date f format:" + currdate.ToString("f"));
Console.WriteLine("Date G format:" + currdate.ToString("G"));
Console.WriteLine("Date g format:" + currdate.ToString("g"));
Console.WriteLine("Date T format:" + currdate.ToString("T"));

11. Console.WriteLine("Date t format:" + currdate.ToString("t"));
Console.WriteLine("Date U format:" + currdate.ToString("U"));
Console.WriteLine("Date u format:" + currdate.ToString("u"));
Console.WriteLine("Date s format:" + currdate.ToString("s"));
Console.WriteLine("Date M format:" + currdate.ToString("M"));
Console.WriteLine("Date m format:" + currdate.ToString("m"));
Console.WriteLine("Date Y format:" + currdate.ToString("Y"));
Console.WriteLine("Date y format:" + currdate.ToString("y"));
Console.ReadLine();
}
}
}
namespace ConsoleApplication20
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("**********Fun with string**********");
string s = "Boy, this is taking a long time.";
Console.WriteLine("--> s contains 'oy'?: {0}",s.Contains("oy"));
Console.WriteLine("--> s contains 'Boy'?: {0}", s.Contains("Bey"));
Console.WriteLine(s.Replace('.','!'));

12. Console.WriteLine(s.Insert(0, "hey"));
Console.ReadLine();
}
}
}
namespace ConsoleApplication21
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Everyone loves ' Hello World' ");
Console.WriteLine("Everyone loves " Hello World" ");
Console.WriteLine("aC:progdocumentpicture ");
Console.WriteLine("Everyone loves ' Hello World' ");
}
}
}