VI.

. .

, . , , . , , , . , . , . class. :

[attributes] [access-modifiers-

] class identifier- [:base-class- [(i)]]

{

class-body-

}

6.1 . , . C# :

public- ;

private- X, private ;protected- X, protected ;internal- X, internal ;protected internal- X, protected internal ;

. public class, . , :

public class Computer{public string Model; public string Proizvodjac; public int BrojProcesora; public int BrojUsbPortova; }

, , 6.1.

6.1:using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Parametri

{

public class KlasaParamet

{

public void ParamMetod(int prviParametar, char drugiParametar, double treciParametar)

{

Console.WriteLine("Prikaz parametara: {0}, {1}, {2}", prviParametar,drugiParametar, treciParametar);

}

}

public class primParametri

{

static void Main()

{

int brojStudenata = 180;

char primKarakter = 'A';

double doubprom = 2036/3.33;

KlasaParamet kp = new KlasaParamet();

kp.ParamMetod(brojStudenata, primKarakter, doubprom);

}

}

}

ParamMetod int, char, double Console.WriteLine. Main(), ParamMetod. .

new . .

MojTip, MojTip :

// MojTipMojTipmojaprom;

// mojaprom=newMojTip ();

, , , -.

6.2 , , . , , . , . :

using system;

public class Smer

{

private string ImeSmera;.......public string GetImeSmera(){

return ImeSmera;

}

public void SetImeSmera( string s)

{

ImeSmera=s;

}

}

.

public static int Main(string[] args)

{

Smert s = new Smer();s.SetSmer("Projektovanje");Console.WriteLine("Smer je :"+d.GetSmer());

return 0;

}6.3

, . Monitor Computer Computer . , , Mouse , Computer Mouse . : . . . , . . , . Computer Icomputers GoStart, GoShutDown. interface, :

publicinterfaceIComputers{

}

:

publicinterfaceIComputers{voidGoStart();

voidGoShutDown();

}

:publicinterfaceIComputers{

//Dodatni clanovifloatRamMemory{

get;

//Za definisanjeread-writesvojstva dodati kod na ovom mestu}}

, . . . using System;using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Osobine

{

public class Zaposleni

{

public static int BrojZaposlenih;

private static int brojac;

private string ime;

public string Name

{

get { return ime; }

set { ime = value; }

}

// Staticka osobina samo za citanje:

public static int Brojac

{

get { return brojac; }

}

// Konstruktor:

public Zaposleni()

{

// Izracunati broj zaposlenih:

brojac = ++brojac + BrojZaposlenih;

}

}

class Program

{

static void Main()

{

Zaposleni.BrojZaposlenih = 600;

Zaposleni e1 = new Zaposleni();

e1.Name = "Milos Markovic";

System.Console.WriteLine("Broj zaposlenog: {0}", Zaposleni.Brojac);

System.Console.WriteLine("Ime zaposlenog: {0}", e1.Name);

}

}

}6.4

, . , :

6.2:using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Svojstva{

class TimePeriod

{

private double seconds;

public double Hours

{

get { return seconds / 3600; }

set { seconds = value * 3600; }

}

}

class Program

{

static void Main()

{

TimePeriod t = new TimePeriod();

// Dodeljivanje vrednosti Hours

t.Hours = 24;

// Ocenjivanje Hours svojstva.

System.Console.WriteLine("Vreme u casovima: " + t.Hours);

}

}

} : , , . , , get / set :

public class Date

{

private int month = 7;

public int Month

{

get{

return month;

}

set

{

if ((value > 0) && (value < 13))

{

month = value;

}

}

}

}

Month set Month 1 12. Month . 6.4.1 get

get , . get . get :class Person

{

private string name; // name public string Name // Name {

get

{

return name;

}

}

}

get :

class Employee

{

private string name;

public string Name

{

get

{

return name != null ? name : "NA";

}

}

}

Name NA.

6.4.2 set set , void. . set Name :class Person

{

private string name; // name public string Name // Name {

get

{

return name;

}

set

{

name = value;

}}

}

set, , :

Person person = new Person();

person.Name = "Marko"; // set System.Console.Write(person.Name); // get

, .

6.3:using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Svojstva

{

public class Studenti{

public static int BrojStudenata;

private static int brojac;

private string ime;

// Svojstvo za citanje-pisanje:

public string Name

{

get { return ime; }

set { ime = value; }

}

// Staticko svojstvo samo za citanje:

public static int Brojac

{

get { return brojac; }

}

// Konstruktor:

public Studenti(){

// Izracunavanje broja studenata:

brojac = ++brojac + BrojStudenata;

}

}

class Program

{

static void Main()

{

Studenti.BrojStudenata = 200;

Studenti s = new Studenti();

s.Name = "Milan Markovic";

System.Console.WriteLine("Broj studenata: {0}", Studenti.Brojac);

System.Console.WriteLine("Ime studenata: {0}", s.Name);

}

}}

6.5

.

, .

new, , :

Class1 MojaKlasa = new Class1();

:

int myInt = new int();

, . public. Kompjuter, Kompjuter, inicijalizovanje bool - true - false. Kompjuter, WriteLine Console . 6.4:using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace PrimerKonstruktora

{

public class Kompjuter

{

public bool inicijalizovanje;

public Kompjuter()

{

inicijalizovanje = true;

}

}

class Konstruktor

{

static void Main()

{

Kompjuter k = new Kompjuter();

Console.WriteLine(k.inicijalizovanje);

}

}

}

default- . new.

private, :class PrevInic{

// Privatni konstruktor:

private PrevInic() { }

public static double e = Math.E; //2.71828...

}

61. - ?

2. .3. ?

4. , ?

5. ?

6. ?

7. set get?

8. ?

9. ?

VII.

, . .

struct :

public struct PrimerStruktura{

// Polja, svojstva, metodi I dogadjaji se unose ovde...

}

7.1

:

7.1

// struct1.csusing System;

struct SimpleStruct

{

private int xval;

public int X

{

get

{

return xval;

}

set

{

if (value < 100)

xval = value;

}

}

public void DisplayX()

{

Console.WriteLine("Sacuvana vrednost je: {0}", xval);

}

}

class TestClass

{

public static void Main()

{

SimpleStruct ss = new SimpleStruct();

ss.X = 5;

ss.DisplayX();

}

}

Point, Rectangle, Color. , Point , : 7.2:using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Strukture

{

public struct CoOrds

{

public int x, y;

public CoOrds(int p1, int p2)

{

x = p1;

y = p2;

}

}

class Program

{

static void Main()

{

{

// Inicijalizacija:

CoOrds coords1 = new CoOrds();

CoOrds coords2 = new CoOrds(10, 10);

// Prikaz rezultata:

Console.Write("CoOrds 1: ");

Console.WriteLine("x = {0}, y = {1}", coords1.x, coords1.y);

Console.Write("CoOrds 2: ");Console.WriteLine("x = {0}, y = {1}", coords2.x, coords2.y);

// Ostaviti prozor konzole otvoren u Debug modu.

Console.WriteLine("Press any key to exit.");

Console.ReadKey();

}

}

}

} :

7.3:using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Strukture

{

public struct CoOrds

{

public int x, y;

public CoOrds(int p1, int p2)

{

x = p1;

y = p2;

}

}

class Program

{

static void Main()

{

{

// Deklarisanje objekta:

CoOrds coords1;

// Inicijalizacija:

coords1.x = 10;

coords1.y = 20;

// Prikaz rezultata:

Console.Write("CoOrds 1: ");

Console.WriteLine("x = {0}, y = {1}", coords1.x, coords1.y);

// Konzolni prozor mora biti otvoren u Debug modu.

Console.WriteLine("Press any key to exit.");

Console.ReadKey();}

}

}

}7.2 : 7.4:struct RomanNumeral

{

private int value;

public RomanNumeral(int value) //konstruktor{

this.value = value;

}

static public implicit operator RomanNumeral(int value)

{

return new RomanNumeral(value);

}

static public implicit operator RomanNumeral(BinaryNumeral binary)

{

return new RomanNumeral((int)binary);

}

static public explicit operator int(RomanNumeral roman)

{

return roman.value;

}

static public implicit operator string(RomanNumeral roman)

{

return ("Ne primenjuje se konverzija u string");

}

}

struct BinaryNumeral

{

private int value;

public BinaryNumeral(int value) //konstruktor{

this.value = value;

}

static public implicit operator BinaryNumeral(int value)

{

return new BinaryNumeral(value);

}

static public explicit operator int(BinaryNumeral binary)

{

return (binary.value);

}

static public implicit operator string(BinaryNumeral binary)

{

return ("Ne primenjuje se konverzija u string ");

}

}

class TestConversions

{

static void Main()

{

RomanNumeral roman;

BinaryNumeral binary;

roman = 10;

// Izvodi konverziju iz RomanNumeral u BinaryNumeral:

binary = (BinaryNumeral)(int)roman;

// Izvodi konverziju iz BinaryNumeral u RomanNumeral:

roman = binary;

System.Console.WriteLine((int)binary);

System.Console.WriteLine(binary);

// Ostaviti otvoren konzolni prozor.

System.Console.WriteLine("Press any key to exit.");

System.Console.ReadKey();

}

}

:

7.5:using System;

class TheClass

{

public int x;

}

struct TheStruct

{

public int x;

}

class TestClass

{

public static void structtaker(TheStruct s)

{

s.x = 5;

}

public static void classtaker(TheClass c)

{

c.x = 5;

}

public static void Main()

{

TheStruct a = new TheStruct();

TheClass b = new TheClass();

a.x = 1;

b.x = 1;

structtaker(a);

classtaker(b);

Console.WriteLine("a.x = {0}", a.x);

Console.WriteLine("b.x = {0}", b.x);

}

}

71. ?2. ?3. .

4. ?

5. ?

6. .VIII. 8.1

. : , ,

, :

Public void Greska()

Console.Write.Line(Ovo je poruka)

Console WriteLine, . Task list . , .

, Run-time . , . . , :publicfloatIzracunavanjeBrojaSekundi(floatBrojSekundi)

{

floatBrojSekundi;

BrojSekundi=24*1*360;

returnBrojSekundi;

}

8.2

. F11, Step Into Debug . Step Over Step Int, Step Over . F10 Step Over .

Start Out , Debug , Shift + F11. , , Run to cursor.

Set Next Statement next , .

Break .

. Debug Windows Breakpoints. Breakpoints .

Breakpoint : Name, Condition, Address. Condition Breakpoint Condition , . false true. , .

Hit Count New Breakpoint Breakpoint Hit Count , . Locals, Autos Watch.Locals : Name , Value , Type . Locals Value . . Value .8.3 1. C# project/solution ( project/solution Visual Studio ). 'File -> Open -> Project/Solution' ( Ctrl+Shift+O):

8.1: C# project/solution

8.2:

2. C# project/solution :

8.3:

3. setup project . 'File -> Add -> New Project...':

8.4: setup project

4. 'Project types' 'Other Projects -> Setup and Deployment' 'Setup Wizard' template:

8.5: setup wizard template-a

5. 5 .

#1:

8.6: #2:

8.7:

setup project . :

setup program :

setup Windows setup web :

merge Windows Installer CAB file

#3:

8.8:

. 'Primary output', DLL EXE.

8.9: Primary output-

8.10: HTML ReadMe . ReadMe :

8.11: ReadMe #5

8.12:

6. :

8.13:

7. setup . Setup1 'Solution Explorer' :

8. Start :

8.14:

9. :

8.15:

8.16:

10. :

8.17:

8.18: Setup 11. :

8.19:

8.20: Setup :

8.21:

12. :

8.22:

8.23: Setup

13. :

8.24:

8.25: Setup-a

14. 'Setup1', 'Build' ):

8.26: Build

81. ?2. ?

3. ?

4. .

5. Breakpoint ?

6. ?

7. .

IX. C# . (bugs) , (errors) (exceptions) .

, . . catch. , . System.Exception ArgumentNullException, OverflowException, InvalidCastException . try, . catch, :

9.1:using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace DeljenjeNulom{

class ExceptionTest

{

static double SafeDivision(double x, double y)

{

if (y == 0)

throw new System.DivideByZeroException();

return x / y;

}

static void Main()

{

// Unete ulazne velicine u cilju testiranja

double a = 98, b = 0;

double result = 0;

try

{

result = SafeDivision(a, b);

Console.WriteLine("{0} podeljeno sa {1} = {2}", a, b, result);

}

catch (DivideByZeroException e)

{

Console.WriteLine("Pokusaj deljenja nulom.");

}

}

}

} , throw, . switch case :switch(GodDoba)

{

case Leto:

// . . .slucaj Leto . .

return Leto;

case Prolece:

// . . .slucaj Prolece . . .

return Prolece;

case Zima:

// . . .slucaj Zima . . .

return Zima;

case Jesen:

// . . .slucaj Jesen . . .

default

} , ArgumentOutOfRangeException. .

9.2:public static void Main()

{ int z = 0;

try { int y = 20 + 3*z/z;

}

catch (ArithmeticException e)

{

Console.WriteLine("ArithmeticException Handler: {0}", e.ToString());

}}

catch, catch (Exception caught). Exception. . throw, :class CustomException : Exception{

public CustomException(string poruka){

}

}

private static void TestBacanje()

{

CustomException ex =

new CustomException("Uobicajeni izuzetak u TestBacanje ()");

throw ex;

}

, try . catch try . Catch , catch , catch , :

static void TestCatch(){

try

{

TestThrow();

}

catch (CustomException ex)

{

System.Console.WriteLine(ex.ToString());

}

}

, InvalidOperationException , :

class ProgramLog

{

System.IO.FileStream logFile = null;

void OpenLog(System.IO.FileInfo fileName, System.IO.FileMode mode) {}

void WriteLog()

{

if (!this.logFile.CanWrite)

{

throw new System.InvalidOperationException("Logfile ne moze biti samo za citanje");

}

// Upisati podatke u log datoteku.

}

}

ArgumentException . ArgumentException InnerException :static int GetValueFromArray(int[] array, int index)

{

try

{

return array[index];

}

catch (System.IndexOutOfRangeException ex)

{

System.ArgumentException argEx = new System.ArgumentException("Index is out of range", "index", ex);throw argEx;}

}

IndexOutOfRangeException , ArgumentOutOfRangeException :

class TestTryCatch

{

static int GetInt(int[] array, int index)

{

try

{

return array[index];

}

catch (System.IndexOutOfRangeException e)

{

System.Console.WriteLine(e.Message);

// Set IndexOutOfRangeException to the new exception's InnerException.

throw new System.ArgumentOutOfRangeException("index parameter is out of range.", e);

}

}

}

finally , , :

catch (exception)

{

Console.WriteLine("Izuzetak 1);

}catch (exception)

{

Console.WriteLine(Izuzetak 2);

}

catch (exception)

{

Console.WriteLine(Izuzetak 3);

}Finally{

Console.WriteLine("Izvrsavanje finalnog bloka.");

}

finally . :static void CodeWithoutCleanup()

{

System.IO.FileStream file = null;

System.IO.FileInfo fileInfo = new System.IO.FileInfo("C:\\primer.txt");

file = fileInfo.OpenWrite();

file.WriteByte(0xF);

file.Close();

} try-catch-finally :

static void CodeWithCleanup()

{

System.IO.FileStream file = null;

System.IO.FileInfo fileInfo = null;try

{

fileInfo = new System.IO.FileInfo("C:\\primer.txt");

file = fileInfo.OpenWrite();

file.WriteByte(0xF);

}

catch(System.UnauthorizedAccessException e)

{System.Console.WriteLine(e.Message);

}

finally

{

if (file != null)

{

file.Close();

}

}

}

91. ?2. ?

3. .

4. .

5. . .

6. finally.