WAP for simple calculator using switch case

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace switch_case

{

    class Program

    {

        static void Main(string[] args)

        {

          int  a, b, ch, add, div, mul, sub;

            Console.Write("Enter the 1st no=");

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

            Console.Write("Enter the 2nd no=");

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

      

            Console.WriteLine("1.Addition");

            Console.WriteLine("2.Subtraction");

            Console.WriteLine("3.Multiplication");

            Console.WriteLine("4.Division");

                Console.Write("Enter your choice");

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

                switch (ch)

                {

                    case 1:

                        add = a + b;

                        Console.WriteLine(add);

                        break;

                    case 2:

                        sub = a - b;

                        Console.WriteLine(sub);

                        break;

                    case 3:

                        mul = a * b;

                        Console.WriteLine(mul);

                        break;

                    case 4:

                        div = a / b;

                        Console.WriteLine(div);

                    break;

                    default :

                        Console.WriteLine("wrong choice");

                        break;

                }

                Console.ReadLine();

        }

    }

}

OUTPUT:-

 

WAP for GCD of two numbers.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace vaishu

{

    class Program

    {

        static int gcd(int a, int b)

        {

            int temp;

            if (b == 0)

                return a;

            else

                while (b != 0)

                {

                    temp = b;

                    b = a % b;

                    a = temp;

                }

            return a;

        }

        static void Main(string[] args)

        {

            int n1, n2, gcd1;

            Console.WriteLine("Enter first number" );

            n1 = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("Enter second number");

            n2 = Convert.ToInt32(Console.ReadLine());

            gcd1 = gcd(n1, n2);

            Console.WriteLine("gcd= " + gcd1);

            Console.ReadLine();

        }

    }

}

Output:

    

     

WAP for fibonacci series

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace fib

{

    class Program

    {

     

        static void Main(string[] args)

        {

            int f1 = 0, f2 = 1, f3 = 0;

            int n,i;

            Console.Write("Enter the limit= ");

            n = int.Parse(Console.ReadLine());

            Console.WriteLine(f1);

            Console.WriteLine(f2);

            for (i =3; i <= n; i++)

            {

                f3 = f1 + f2;

                f1 = f2;

                f2 = f3;

              

                Console.WriteLine(f3);

            }

 

                Console.ReadLine();

             

        }

    }

}

Output:

 

WAP for number is armstrong

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace arm

{

    class Program

    {

        static void Main(string[] args)

        {

            int sum, temp, no, rem;

            Console.WriteLine("Armstrong no between 1 to 1000=");

            for (no = 1; no <= 1000; no++)

            {

                temp = no;

                sum = 0;

                while (temp > 0)

                {

                    rem = temp % 10;

                    sum = sum + (rem * rem * rem);

                    temp = temp / 10;

                }

                if (no == sum)

                {

                    Console.WriteLine("   " + no);

                  

                }

            }

            Console.ReadLine();

        }

    }

}

Output:

 

WAP to swap without using third variable.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace temporary

{

    class Program

    {

        static void Main(string[] args)

        {

            int a, b;

            Console.WriteLine("Before Swapping:- ");

            Console.Write("\nEnter the value of a= ");

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

            Console.Write("\nEnter the value of b= ");

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

            a = a + b;

            b = a - b;

            a = a - b;

            Console.WriteLine(" \n After Swapping:-\n");

            Console.WriteLine("\nvalue of a= "+a);

            Console.WriteLine("\nvalue of b= " + b);

            Console.ReadLine();

        }

    }

}

OUTPUT:-

WAP to access and mutate named properties.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace ConsoleApplication6

{

    class Example

    {

        int _number;

        public int Number

       {

            get

            {

                 return this._number;

             }

            set

            {

                this._number=value;

            }

        }

    }

     class Program

    {

        static void Main(string[] args)

        {

            Example example=new Example();

            example.Number=5;//set()

            Console.WriteLine("number="+example.Number);

            Console.ReadLine();

        }

    }

}

OUTPUT:-