sample program to demonstrate the use of structures.

1. Write a sample program to demonstrate the use of structures.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace @struct

{

    class Program

    {

        static void Main(string[] args)

        {

            CustomerDetails obj = new CustomerDetails();

            Console.WriteLine("Enter the CustomerID");

            obj.customerid = Console.ReadLine();

            Console.WriteLine("Enter the CustomerName");

            obj.customername = Console.ReadLine();

            Console.WriteLine("Enter the CustomerPhoneNo");

            obj.customerphoneno = Console.ReadLine();

            Console.WriteLine("Enter the CustomeAddress");

            obj.customeraddress = Console.ReadLine();

            Console.WriteLine("Enter the ProductName");

            obj.customerproduct = Console.ReadLine();

            Console.WriteLine("Enter the BillAmount");

            obj.customerbillamt = Console.ReadLine();

            Console.WriteLine("Customer Information is as follows:");

            Console.WriteLine("===================================");

            Console.WriteLine("CustomerID:\t{0}", obj.customerid);

            Console.WriteLine("CustomerName:\t{0}", obj.customername);

            Console.WriteLine("CustomerPhone:\t{0}", obj.customerphoneno);

            Console.WriteLine("CustomerAddress:\t{0}", obj.customeraddress);

            Console.WriteLine("CustomerProduct:\t{0}", obj.customerproduct);

            Console.WriteLine("CustomerBillAmount:\t{0}", obj.customerbillamt);

            Console.ReadLine();

        }

    }

    struct CustomerDetails

    {

        public string customerid;

        public string customername;

        public string customerphoneno;

        public string customeraddress;

        public string customerproduct;

        public string customerbillamt;

    }

}

Sample program to understand enum.

Write a sample program to understand enum.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Enums

{

    class Program

    {

        enum Days { sat, sun, mon, tue, wed, thu, fri };

        static void Main(string[] args)

        {

            Console.WriteLine("{0}",(int)Days.sun);

            Console.ReadLine();

        }

    }

}

Examples on Value Types and Reference Types

3.Program1:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Csharp

{

    /// <summary>

    /// 1.Value Types  Struct

    /// </summary>

    class ValuetypeStruct

    {

        static void Main(string[] args)

        {

            Person p = new Person("Tony", "Allen", 32);

            Console.Write(p.ToString());

            Console.ReadLine();

        }

        struct Person

        {

            public string firstName;

            public string lastName;

            public int age;

            public Person(string _firstName, string _lastName, int_age)

            {

                firstName = _firstName;

                lastName = _lastName;

                age = _age;

            }

            public override string ToString()

            {

                return firstName + lastName + age;

            }

        }

    }

}

4.Program 2:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Csharp

{

    /// <summary>

    /// Extending program1 to make use of enum

    /// </summary>

    class Enum

    {

        static void Main(string[] args)

        {

            Person p = new Person("Tony", "Allen", 32, Person.Genders.Male);

            Console.Write(p.ToString());

            Console.ReadLine();

        }

        struct Person

        {

            public string firstName;

            public string lastName;

            public int age;

            public Genders gender;

            public Person(string _firstName, string _lastName, int _age, Genders _gender)

            {

                firstName = _firstName;

                lastName = _lastName;

                age = _age;

                gender = _gender;

            }

            public override string ToString()

            {

                return firstName + " " + lastName + " ," + gender + ", age " + age;

            }

            public enum Genders : int { Male, Female };

        }

    }

}

5.Program 3:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Csharp

{

    /// <summary>

    /// Example of Reference Type

    /// </summary>

    class Referencetypeclass

    {

        static void Main(string[] args)

        {

            Person p = new Person("Tony", "Allen", 32, Person.Genders.Male);

            Console.Write(p.ToString());

            Console.ReadLine();

        }

        class Person

        {

            public string firstName;

            public string lastName;

            public int age;

            public Genders gender;

            public Person(string _firstName, string _lastName, int _age, Genders _gender)

            {

                firstName = _firstName;

                lastName = _lastName;

                age = _age;

                gender = _gender;

            }

            public override string ToString()

            {

                return firstName + " " + lastName + " ," + gender + ", age " + age;

            }

            public enum Genders : int { Male, Female };

        }

    }

}

For Loop Demo C#

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Csharp

{

    class forloop

    {

        public static void Main(string[] args)

        {

            implement obj = new implement();

            obj.forloop();

            Console.ReadLine();

        }

    }

    class implement

    {

        public void forloop()

        {

            Console.WriteLine("The Output is displayed by using Console.WriteLine()\n");

               for(int i=0; i<5; i++)

               {

                   Console.WriteLine("{0}", i);

               }

            Console.WriteLine("\nThe Output is displayed by using Console.Write()\n");

               for (int i = 0; i < 5; i++)

               {

                   Console.Write("{0}\t", i);

               }

        }

    }

}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Csharp

{

    /// <summary>

   

    /// </summary>

    class Extendingforloop

    {

        public static void Main(string[] args)

        {

            design obj = new design();

            obj.loop1();

            obj.loop2();

            obj.loop3();

            obj.loop4();

            //obj.loop5();

            Console.ReadLine();

        }

    }

    class design

    {

        public void loop1()

        {

            for (int i = 1; i <= 5; i++)

            {

                for (int j = 1; j <= i; j++)

                {

                    Console.Write("{0}",i);

                }

                Console.Write("\n");

            }

            Console.Write("\n");

        }

        public void loop2()

        {

            for (int i = 1; i <= 5; i++)

            {

                for (int j = 1; j <= i; j++)

                {

                    Console.Write("{0}", j);

                }

                Console.Write("\n");

            }

            Console.Write("\n");

        }

        public void loop3()

        {

            for (int i = 5; i >= 1 ; i--)

            {

                for (int j= 5;j >= i;j--)

                {

                    Console.Write("{0}", j);

                    if (i <1)

                        break;

                }

                Console.Write("\n");

            }

            Console.Write("\n");

        }

        public void loop4()

        {

            int i=6, c = 0;

            for (; i >= 0; i--)

            {

                c = i;

                Console.Write("\n");

                for (; ; )

                {

                    Console.Write("{0}", c);

                    if (c == 0)

                        break;

                    c--;

                }

            }

        }

Program to design calculator using switch case.

Write a program to design calculator using switch case.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Csharp

{

    /// <summary>

    /// Simple Switch Case Example

    /// </summary>

    class SimpleSwithch

    {

        public static void Main(string[] args)

        {

            Calculator obj = new Calculator();

            obj.cal();

            Console.ReadLine();

        }

    }

    class Calculator

    {

        public int a, b, sum,diff,mul,div;

        public char c;

        public void cal()

        {

        menu:

            Console.Clear();

            Console.WriteLine("=======================================");

            Console.WriteLine("Menu");

            Console.WriteLine("1.Addition");

            Console.WriteLine("2.Subtraction");

            Console.WriteLine("3.Multiplication");

            Console.WriteLine("4.Division");

            Console.WriteLine("=======================================");

         

            Console.WriteLine("Enter Your Option");

            c = Convert.ToChar(Console.ReadLine());

            Console.WriteLine("Enter the Values of a,b");

            a = Convert.ToInt32(Console.ReadLine());

            b = Convert.ToInt32(Console.ReadLine());

            switch (c)

            {

                case '1':

                    sum = a + b;

                    Console.WriteLine("{0}", sum);

                    break;

                case '2':

                    diff = a - b;

                    Console.WriteLine("{0}", diff);

                    break;

                case '3':

                    mul = a * b;

                    Console.WriteLine("{0}", mul);

                    break;

                case '4':

                    div = a / b;

                    Console.WriteLine("{0}", div);

                    break;

                   

            }

            Console.WriteLine("Enter M for Menu or Any other key to Exit");

            c = Convert.ToChar(Console.ReadLine());

            if (c == 'M')

            {

                goto menu;

            }

        }

    }

}

program to calculate total interest based on given conditions using if condition.

Write a program to calculate total interest based on given conditions using if condition.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Csharp

{

    

    /// <summary>

    /// Calculating Total interest based on the given conditions:

    /// Principle Amount     Rate of Interest

    /// >=10,000                20%

    /// >=8000&&<=9999          18%

    /// <8000                   16%

    /// </summary>

    class IFCondition

    {

        public float princ, nyrs, rate, interest;

        public static void Main(string[] args)

        {

            IFCondition obj = new IFCondition();

            obj.res();

            Console.ReadLine();

        }

        public void res()

        {

            Console.Write("\n Enter Loan and No of Years");

            princ = Convert.ToInt32(Console.ReadLine());

            nyrs = Convert.ToInt32(Console.ReadLine());

            if (princ >= 10000)

            {

                rate = 20;

            }

            else if (princ >= 8000 && princ <= 9999)

            {

                rate = 18;

            }

            else if (princ < 8000)

            {

                rate = 16;

            }

            interest = princ * nyrs * rate / 100;

            Console.Write("Years:{0}", nyrs);

            Console.Write("Loan:{0}", princ);

            Console.Write("Rate of Interest:{0}", rate);

            Console.Write("Interest Amount:{0}", interest);

        }

    }

}