Syed Ahmed Zaki

using System;

namespace Function
{
    class Program
    {
        public void show() //no parameter
        {
            Console.WriteLine("This is a non parameterized function");

        }


        static void Main(string[] args)
        {
            Program pp=new Program();
            pp.show();

            Console.ReadLine();

        }
    }
}

using System;

namespace Function

{

class Program

{

public void show() //no parameter

{

Console.WriteLine("This is a non parameterized function");

}

static void Main(string[] args)

{

Program pp=new Program();

pp.show();

Console.ReadLine();

}

using System;

namespace Function
{
    class Program
    {
        public void show(string message) //no parameter
        {
            Console.WriteLine("Hello "+message);

        }


        static void Main(string[] args)
        {
            Program pp=new Program();
            pp.show("zaki");

            Console.ReadLine();

        }
    }
}

using System;

namespace Function

{

class Program

{

public void show(string message) //no parameter

{

Console.WriteLine("Hello "+message);

}

static void Main(string[] args)

{

Program pp=new Program();

pp.show("zaki");

Console.ReadLine();

}

using parameter and return type

using System;

namespace Function
{
    class Program
    {
        public string show(string message) //no parameter
        {
            Console.WriteLine("Inside show function");

            return message;
        }


        static void Main(string[] args)
        {
            Program pp=new Program();
           // pp.show("zaki");

            String message=pp.show("Zaki Live");
            Console.WriteLine("hello: "+message);

            Console.ReadLine();

        }
    }
}

using System;

namespace Function

{

class Program

{

public string show(string message) //no parameter

{

Console.WriteLine("Inside show function");

return message;

}

static void Main(string[] args)

{

Program pp=new Program();

// pp.show("zaki");

String message=pp.show("Zaki Live");

Console.WriteLine("hello: "+message);

Console.ReadLine();

}

Leave a comment

Posted in .NET, C#

Java vs C# Similarity

Posted on September 13, 2017 | Leave a comment

https://www.harding.edu/fmccown/java_csharp_comparison.html

Leave a comment

Posted in .NET, C#, Java

BDjobs Class :12 September 2017

Posted on September 12, 2017 | Leave a comment

//bdjobs class 
using System;


namespace Enumeration
{

    public class Customer
    {
        public string name { get; set; }
        public int gender { get; set; }

    }

    class Program
    {
        static void Main(string[] args)
        {
            Customer[] carray = new Customer[3];
            carray[0] = new Customer
            {
                name = "zaki",
                gender = 1


            };
            carray[1] = new Customer
            {
                name = "Bob",
                gender = 1
            };
            carray[1] = new Customer
            {
                name = "Nish",
                gender = 2
            };

            foreach (Customer cus in carray)
            {
                Console.WriteLine("Name ={0} && gender={1}",cus.name,getGender(cus.gender));
            }


            Console.ReadKey();
            //o for unknown
            //1 is for male
            //2 is for female
        }





        public static string getGender(int gender)
        {
            switch (gender)
            {
                case 0:
                    return "UNKNOWN";
                case 1:
                    return "MALE";
                case 2:
                    return "FEMALE";
                default:
                    return "Invalid Option";
            }
        }
    }
}

//bdjobs class

using System;

namespace Enumeration

{

public class Customer

{

public string name { get; set; }

public int gender { get; set; }

}

class Program

{

static void Main(string[] args)

{

Customer[] carray = new Customer[3];

carray[0] = new Customer

{

name = "zaki",

gender = 1

};

carray[1] = new Customer

{

name = "Bob",

gender = 1

};

carray[1] = new Customer

{

name = "Nish",

gender = 2

};

foreach (Customer cus in carray)

{

Console.WriteLine("Name ={0} && gender={1}",cus.name,getGender(cus.gender));

}

Console.ReadKey();

//o for unknown

//1 is for male

//2 is for female

}

public static string getGender(int gender)

{

switch (gender)

{

case 0:

return "UNKNOWN";

case 1:

return "MALE";

case 2:

return "FEMALE";

default:

return "Invalid Option";

}

//bdjobs class 
using System;


namespace Enumeration
{

    public class Customer
    {
        public string name { get; set; }
        public Program.Gender gender { get; set; }

    }

    public class Program
    {
        static void Main(string[] args)
        {


            //int[] value=Enum.GetValues(typeof(Gender));
            //foreach (int val in value)
            //{
            //    Console.WriteLine(val);
            //}

            Customer[] carray = new Customer[3];
            carray[0] = new Customer
            {
                name = "zaki",
                gender = Gender.UNKNOWN


            };
            carray[1] = new Customer
            {
                name = "Bob",
                gender = Gender.MALE
            };
            carray[2] = new Customer
            {
                name = "Nish",
                gender = Gender.FEMALE
            };

            foreach (Customer cus in carray)
            {
                Console.WriteLine("Name ={0} && gender={1}",cus.name,getGender(cus.gender));
            }


            Console.ReadKey();
            //o for unknown
            //1 is for male
            //2 is for female
        }


        public enum Gender
        {
            UNKNOWN,
            MALE,
            FEMALE
        }



        public static string getGender(Gender gender)
        {
            switch (gender)
            {
                case Gender.UNKNOWN:
                    return "UNKNOWN";
                case Gender.MALE:
                    return "MALE";
                case Gender.FEMALE:
                    return "FEMALE";
                default:
                    return "Invalid Option";
            }
        }
    }
}

//bdjobs class

using System;

namespace Enumeration

{

public class Customer

{

public string name { get; set; }

public Program.Gender gender { get; set; }

}

public class Program

{

static void Main(string[] args)

{

//int[] value=Enum.GetValues(typeof(Gender));

//foreach (int val in value)

//{

// Console.WriteLine(val);

//}

Customer[] carray = new Customer[3];

carray[0] = new Customer

{

name = "zaki",

gender = Gender.UNKNOWN

};

carray[1] = new Customer

{

name = "Bob",

gender = Gender.MALE

};

carray[2] = new Customer

{

name = "Nish",

gender = Gender.FEMALE

};

foreach (Customer cus in carray)

{

Console.WriteLine("Name ={0} && gender={1}",cus.name,getGender(cus.gender));

}

Console.ReadKey();

//o for unknown

//1 is for male

//2 is for female

}

public enum Gender

{

UNKNOWN,

MALE,

FEMALE

}

public static string getGender(Gender gender)

{

switch (gender)

{

case Gender.UNKNOWN:

return "UNKNOWN";

case Gender.MALE:

return "MALE";

case Gender.FEMALE:

return "FEMALE";

default:

return "Invalid Option";

}

Leave a comment

Posted in Uncategorized

Enum in C#

Posted on September 12, 2017 | Leave a comment

using System;

namespace Enum
{
    public enum Season { WINTER, SPRING, SUMMER, FALL }
    class Program
    {

        static void Main(string[] args)
        {
            int x = (int)Season.WINTER;
            int y = (int)Season.SUMMER;

            Console.WriteLine("Winter"+x);
            Console.WriteLine("Summer"+y);

            Console.ReadKey();
        }
    }
}

using System;

namespace Enum

{

public enum Season { WINTER, SPRING, SUMMER, FALL }

class Program

{

static void Main(string[] args)

{

int x = (int)Season.WINTER;

int y = (int)Season.SUMMER;

Console.WriteLine("Winter"+x);

Console.WriteLine("Summer"+y);

Console.ReadKey();

}

Leave a comment

Posted in .NET, C#

Command Line Arguments in C#

Posted on September 12, 2017 | Leave a comment

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CommandLine
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello "+args[0]);
            Console.ReadKey();
        }
    }
}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace CommandLine

{

class Program

{

static void Main(string[] args)

{

Console.WriteLine("Hello "+args[0]);

Console.ReadKey();

}

another

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CommandLine
{
    class Program
    {
        static void Main(string[] jobs)
        {
            Console.WriteLine("Hello "+jobs[0]);
            Console.ReadKey();
        }
    }
}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace CommandLine

{

class Program

{

static void Main(string[] jobs)

{

Console.WriteLine("Hello "+jobs[0]);

Console.ReadKey();

}

it will give error:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CommandLine
{
    class Program
    {
        static void Main(int[] jobs)
        {
            Console.WriteLine("Hello "+jobs[0]);
            Console.ReadKey();
        }
    }
}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace CommandLine

{

class Program

{

static void Main(int[] jobs)

{

Console.WriteLine("Hello "+jobs[0]);

Console.ReadKey();

}

Leave a comment

Posted in .NET, C#

Exception in C#

Posted on September 12, 2017 | Leave a comment

using System;

namespace @finally
{
    class Program
    {

        static void Main(string[] args)
        {
            try
            {
                int a = 10;
                int b = 0;
                int x = a / b;

            }

            catch (Exception exerror)
            {
               // Console.WriteLine("Error:"+exerror);
                Console.WriteLine("Error: "+exerror.Message);
            }
            
            finally
            {
                Console.WriteLine("Finally block is executed");
            }
            Console.WriteLine("Rest of the code");
            Console.ReadKey();
        }
    }
}

using System;

namespace @finally

{

class Program

{

static void Main(string[] args)

{

try

{

int a = 10;

int b = 0;

int x = a / b;

}

catch (Exception exerror)

{

// Console.WriteLine("Error:"+exerror);

Console.WriteLine("Error: "+exerror.Message);

}

finally

{

Console.WriteLine("Finally block is executed");

}

Console.WriteLine("Rest of the code");

Console.ReadKey();

}

Another example:

User Define Excepton where throws is use

using System;

namespace UserDefinedExeption
{

    public class Temperature
    {
        int temperature = 0;

        public void showTemp()
        {
            if (temperature == 0)
            {
                throw(new TempIsZeroException("Zero temperature found"));
            }
            else
            {
                Console.WriteLine("Temperature: {0}", temperature);
            }
        }
    }

    public class TempIsZeroException : Exception
    {
        public TempIsZeroException(string message) : base(message)
        {
            
        }
    }

    class TestTemperature
    {
        static void Main(string[] args)
        {
            Temperature temp = new Temperature();
            try
            {
                temp.showTemp();
            }
            catch(TempIsZeroException e)
            {
                Console.WriteLine("TempIsZeroException: "+e.Message);
            }
            Console.ReadLine();
        }
    }

}

using System;

namespace UserDefinedExeption

{

public class Temperature

{

int temperature = 0;

public void showTemp()

{

if (temperature == 0)

{

throw(new TempIsZeroException("Zero temperature found"));

}

else

{

Console.WriteLine("Temperature: {0}", temperature);

}

public class TempIsZeroException : Exception

{

public TempIsZeroException(string message) : base(message)

{

}

class TestTemperature

{

static void Main(string[] args)

{

Temperature temp = new Temperature();

try

{

temp.showTemp();

}

catch(TempIsZeroException e)

{

Console.WriteLine("TempIsZeroException: "+e.Message);

}

Console.ReadLine();

}

Leave a comment

Posted in .NET, C#

BDJObs.com .NET Class

Posted on September 11, 2017 | Leave a comment

Leave a comment

Posted in .NET, C#

Don’t waste your time! Never ever!!

Posted on September 11, 2017 | Leave a comment

Don’t waste your time! Never ever!!

Leave a comment

Posted in Life Motivation, Life Productivity

Base and Sealed class

Posted on September 10, 2017 | Leave a comment

base class field

using System;

public class Animal
{
    public string color = "white";
}

public class Dog:Animal{
    string color="black";

public void showColor()
{

    Console.WriteLine(base.color);
    Console.WriteLine(color);
}
}

namespace baseKeyword
{

    public class TestBase
    {
        static void Main(string[] args)
        {
            Dog d=new Dog();
            d.showColor();
            Console.ReadKey();
        }
    }
}

using System;

public class Animal

{

public string color = "white";

}

public class Dog:Animal{

string color="black";

public void showColor()

{

Console.WriteLine(base.color);

Console.WriteLine(color);

}

namespace baseKeyword

{

public class TestBase

{

static void Main(string[] args)

{

Dog d=new Dog();

d.showColor();

Console.ReadKey();

}

//base class method

using System;

namespace BaseClassMethod
{
    public class Animal
    {
        public virtual void eat()
        {
            Console.WriteLine("eat");
        }
    }

    public class Dog : Animal
    {
        public override void eat()
        {
            base.eat();
            Console.WriteLine("eating bread!");

        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            Dog d = new Dog();
            d.eat();
            Console.ReadKey();
        }
    }
}

using System;

namespace BaseClassMethod

{

public class Animal

{

public virtual void eat()

{

Console.WriteLine("eat");

}

public class Dog : Animal

{

public override void eat()

{

base.eat();

Console.WriteLine("eating bread!");

}

class Program

{

static void Main(string[] args)

{

Dog d = new Dog();

d.eat();

Console.ReadKey();

}

//calling base class constructor internally

using System;

namespace base_class_constructor_internally
{

    public class Animal
    {

        public Animal()
        {
            Console.WriteLine("Animal");
        }
       
    }


    public class Dog : Animal
    {
        public Dog()
        {
            Console.WriteLine("Dog...");
        }
    }


    class Program
    {
        static void Main(string[] args)
        {

            Dog d=new Dog();
            Console.ReadLine();
        }
    }
}

using System;

namespace base_class_constructor_internally

{

public class Animal

{

public Animal()

{

Console.WriteLine("Animal");

}

public class Dog : Animal

{

public Dog()

{

Console.WriteLine("Dog...");

}

class Program

{

static void Main(string[] args)

{

Dog d=new Dog();

Console.ReadLine();

}

//sealed class
using System;

namespace Sealed
{
    sealed public class Animal
    {
        public void eat()
        {
            Console.WriteLine("Eating...");
        }
    }

    public class Dog : Animal
    {
        public void bark()
        {
            Console.WriteLine("Barking....");
        }
    }

    public class TestSealed 
    {
        static void Main(string[] args)
        {
            Dog d=new Dog();
            d.bark();
            d.eat();
            Console.ReadLine();

        }
    }
}

//sealed class

using System;

namespace Sealed

{

sealed public class Animal

{

public void eat()

{

Console.WriteLine("Eating...");

}

public class Dog : Animal

{

public void bark()

{

Console.WriteLine("Barking....");

}

public class TestSealed

{

static void Main(string[] args)

{

Dog d=new Dog();

d.bark();

d.eat();

Console.ReadLine();

}

using System;


namespace SealedMethod
{
    public class Animal
    {
        public virtual void eat()
        {
            Console.WriteLine("eating..");
        }

        public virtual void run()
        {
            Console.WriteLine("running...");
        }
    }


    public class Dog : Animal
    {
        public void eat()
        {
            Console.WriteLine("Eating bread...");
        }

        public sealed void run()
        {
            Console.WriteLine("Running very fast");
        }
    }

    public class BabyDog : Dog
    {
        public override void eat()
        {
            Console.WriteLine("Eating biscuits");
        }

        public override void run()
        {
            Console.WriteLine("Running slowly");
        }
    }

    
    class Program
    {
        static void Main(string[] args)
        {
            BabyDog d=new BabyDog();
            d.eat();
            d.run();
            Console.ReadKey();
        }
    }
}

using System;

namespace SealedMethod

{

public class Animal

{

public virtual void eat()

{

Console.WriteLine("eating..");

}

public virtual void run()

{

Console.WriteLine("running...");

}

public class Dog : Animal

{

public void eat()

{

Console.WriteLine("Eating bread...");

}

public sealed void run()

{

Console.WriteLine("Running very fast");

}

public class BabyDog : Dog

{

public override void eat()

{

Console.WriteLine("Eating biscuits");

}

public override void run()

{

Console.WriteLine("Running slowly");

}

class Program

{

static void Main(string[] args)

{

BabyDog d=new BabyDog();

d.eat();

d.run();

Console.ReadKey();

}

Sealed variable not possible:

using System;


namespace SealedMethod
{
    public class Animal
    {
        public virtual void eat()
        {
            Console.WriteLine("eating..");
        }

        public virtual void run()
        {
            Console.WriteLine("running...");
        }
    }


    public class Dog : Animal
    {
        public void eat()
        {
            Console.WriteLine("Eating bread...");
        }

        public void run()
        {
            Console.WriteLine("Running very fast");
        }
    }

    public class BabyDog : Dog
    {
        public override void eat()
        {
            Console.WriteLine("Eating biscuits");
        }

        public override void run()
        {
            Console.WriteLine("Running slowly");
        }
    }

    
    class Program
    {
        static void Main(string[] args)
        {
            BabyDog d=new BabyDog();
            d.eat();
            d.run();

            sealed int x=10;
            Console.WriteLine(x);

            Console.ReadKey();
        }
    }
}

using System;

namespace SealedMethod

{

public class Animal

{

public virtual void eat()

{

Console.WriteLine("eating..");

}

public virtual void run()

{

Console.WriteLine("running...");

}

public class Dog : Animal

{

public void eat()

{

Console.WriteLine("Eating bread...");

}

public void run()

{

Console.WriteLine("Running very fast");

}

public class BabyDog : Dog

{

public override void eat()

{

Console.WriteLine("Eating biscuits");

}

public override void run()

{

Console.WriteLine("Running slowly");

}

class Program

{

static void Main(string[] args)

{

BabyDog d=new BabyDog();

d.eat();

d.run();

sealed int x=10;

Console.WriteLine(x);

Console.ReadKey();

}

Leave a comment

Posted in .NET, C#

C# Generics

Posted on September 10, 2017 | Leave a comment

Generics Class:

using System;
namespace GenericsClass
{
    class GenericClass<T>
    {
        public GenericClass(T msg)
        {
            Console.WriteLine(msg);
        }
    }
    class Program
    {
        static void Main(string[] args)
        {


            GenericClass<string> gen=new GenericClass<string>("This is generic class");
            GenericClass<int> inrr=new GenericClass<int>(101);
            GenericClass<char> getCh=new GenericClass<char>('I');

            Console.ReadKey();
        }
    }
}

using System;

namespace GenericsClass

{

class GenericClass<T>

{

public GenericClass(T msg)

{

Console.WriteLine(msg);

}

class Program

{

static void Main(string[] args)

{

GenericClass<string> gen=new GenericClass<string>("This is generic class");

GenericClass<int> inrr=new GenericClass<int>(101);

GenericClass<char> getCh=new GenericClass<char>('I');

Console.ReadKey();

}

Generics method:

using System;

namespace GenericMEthod
{
    class GenericClass
    {
        public void Show<T>(T msg)
        {
            Console.WriteLine(msg);
        }

    }
    class Program
    {
        static void Main(string[] args)
        {
            GenericClass genc=new GenericClass();
            genc.Show("This is generic method");
            genc.Show(101);
            genc.Show('I');
            Console.ReadKey();
        }
    }
}

using System;

namespace GenericMEthod

{

class GenericClass

{

public void Show<T>(T msg)

{

Console.WriteLine(msg);

}

class Program

{

static void Main(string[] args)

{

GenericClass genc=new GenericClass();

genc.Show("This is generic method");

genc.Show(101);

genc.Show('I');

Console.ReadKey();

}

Leave a comment

Posted in .NET, C#

C# Properties

Posted on September 10, 2017 | Leave a comment

using System;


namespace Propertytest
{
    class Person
    {
        private int age;
        private string gender;

        public int Age
        {
            get { return age; }
            set { age = value+40; }
        }


        public string Gender
        {
            get { return gender; }
            set
            {
                if (value =="male"||value=="female")
                {
                    gender = value;
                }
            }
        }

    }


    class Program
    {

        static void Main(string[] args)
        {
            Person tom=new Person();

            tom.Age = 30;
            Console.WriteLine(tom.Age);
            tom.Gender = "male";
            Console.WriteLine(tom.Gender);
            Console.ReadKey();
        }
    }
}

using System;

namespace Propertytest

{

class Person

{

private int age;

private string gender;

public int Age

{

get { return age; }

set { age = value+40; }

}

public string Gender

{

get { return gender; }

set

{

if (value =="male"||value=="female")

{

gender = value;

}

class Program

{

static void Main(string[] args)

{

Person tom=new Person();

tom.Age = 30;

Console.WriteLine(tom.Age);

tom.Gender = "male";

Console.WriteLine(tom.Gender);

Console.ReadKey();

}

Read Only:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ReadOnly
{
    public class Employee
    {
        private static int counter;

        public Employee()
        {
            counter++; //here counteer is increasing
        }

        public static int Counter
        {
            get { return counter; }
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            Employee e1=new Employee();
            Employee e2=new Employee();
            Employee e3=new Employee();

            Console.WriteLine("No. of employees: "+Employee.Counter);
            Console.ReadKey();
        }
    }
}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace ReadOnly

{

public class Employee

{

private static int counter;

public Employee()

{

counter++; //here counteer is increasing

}

public static int Counter

{

get { return counter; }

}

class Program

{

static void Main(string[] args)

{

Employee e1=new Employee();

Employee e2=new Employee();

Employee e3=new Employee();

Console.WriteLine("No. of employees: "+Employee.Counter);

Console.ReadKey();

}

Leave a comment

Posted in .NET, C#

Interface

Posted on September 10, 2017 | Leave a comment

Interface:

//interface method is public and abstract by default
using System;

namespace InterfaceTest
{

    public interface Drawable
    {
        void draw();
    }

    public class Rectangle : Drawable
    {
        public void draw()
        {
            Console.WriteLine("drawing rectangle...");
        }
    }


    public class Circle : Drawable
    {
        public void draw()
        {
            Console.WriteLine("drawing circle...");
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            Drawable d;
            d=new Rectangle();
            d.draw();
            d=new Circle();
            d.draw();

            Console.ReadKey();
        }
    }
}

//interface method is public and abstract by default

using System;

namespace InterfaceTest

{

public interface Drawable

{

void draw();

}

public class Rectangle : Drawable

{

public void draw()

{

Console.WriteLine("drawing rectangle...");

}

public class Circle : Drawable

{

public void draw()

{

Console.WriteLine("drawing circle...");

}

class Program

{

static void Main(string[] args)

{

Drawable d;

d=new Rectangle();

d.draw();

d=new Circle();

d.draw();

Console.ReadKey();

}

Leave a comment

Posted in .NET, C#

Syed Ahmed Zaki

Registration System Using ASP.NET using SQL Database

ASP.NET Master Page Creation

String vs string in c#

Function in C#

Java vs C# Similarity

BDjobs Class :12 September 2017

Enum in C#

Command Line Arguments in C#

Exception in C#

BDJObs.com .NET Class

Don’t waste your time! Never ever!!

Base and Sealed class

C# Generics

C# Properties

Interface

Caution and Tips:

Category

About Me & MyBlog

Recent Posts

Recent Comments

My Facebook

My Algorithmic Progress in OJ’s

My Github

My Linkedin

Count per Day

Archives

This site is powered by:

Bookmarks

My Coding Page

Top Posts & Pages

My Skills

My Poster/Presentations

My Videos

My Bookshelf

Quote From Life

Caution and Tips:

Category

About Me & MyBlog

Recent Posts

Recent Comments

My Facebook

My Algorithmic Progress in OJ’s

My Github

My Linkedin

Tags

Count per Day

Archives

This site is powered by:

Bookmarks

My Coding Page

Top Posts & Pages

My Skills

My Poster/Presentations

My Videos

My Bookshelf

Quote From Life