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-Write in C# Pick at least 5 countries, research their populations and capitals.

ID: 3801221 • Letter: #

Question

-Write in C# Pick at least 5 countries, research their populations and capitals. Request the name of the country from the user, then using a switch display the population and the capital of the entered country.

-Write a loop to add all the consecutive integers between 5 and 45 except the 12, 25, and 40. Display the final sum.

-A store sells two items (Item1 and Item2). Item1 is priced at $3.95 and Item2 is priced at $2.50. Request from the user the quantity of Item1 purchased and the quantity of Item2 purchased. Calculate item1subtotal, item2Subbotal, subtotals, tax and total. Display all. (tax is 9.8% or 0.098)

-Write a program that allows the user 13 tries to answer the question: “Which U.S. President was born on July 4?” After 5 incorrect guesses the program should give the hint: “ He once said, ‘if you don’t say anything, you won’t be called upon to repeat it.’ “. After 10 incorrect guesses, the program should give the hint “ His nickname was ‘Silent Cal.’”. Note: Calvin Coolidge was born on July 4, 1872.

-Request two values from user N and M, where N is the number of stars per line and M is the number of rows (lines) Display as many rows and columns of stars

-Create an array of doubles and initialize it with the following values:     -3.5, 2.3, 5.9, -6.9, -12.1, 15.6, 4.7, -3.8, -17.3, -11.4, 12.6, 19.9

-Write a statemenent to change the fifth element to the new value: 16.9

-Write a statement to decrease the last element by 3.7

Explanation / Answer

C# CODE FOR PROGRAM 1

using System;

//main class begins

class Program3
{
   //main method begins
   static void Main()
   {
      
       while(true)
       {
           //display of menu

           Console.WriteLine(" 1. South Korea");
           Console.WriteLine("2. United Kingdom");
           Console.WriteLine("3. Thailand");
           Console.WriteLine("4. PhilippinesDivide");
           Console.WriteLine("5. Spain");
           Console.WriteLine("6. Exit");
          
          
           //getting choice from the user      
           Console.WriteLine(" Enter your choice of country: ");
           String country=Console.ReadLine();
      
           int choice=Convert.ToInt32(country);


                  
      
           //depends upon the choice of the user, any one of the case will be selected and executed
           switch(choice)
           {
               case 1: Console.WriteLine(" Capital of South Korea is Seoul");
                             Console.WriteLine(" Population of South Korea is 50,503,933 ");
                           break;
  
               case 2: Console.WriteLine(" Capital of United Kingdom is London");
                              Console.WriteLine(" Population of South Korea is 65,111,143");
                           break;

               case 3: Console.WriteLine(" Capital of Thailand is Bangkok");
                              Console.WriteLine(" Population of Thailand is 68,146,609");
                           break;

               case 4: Console.WriteLine(" Capital of Philippines is Manila");
                              Console.WriteLine(" Population of Philippines is 102,250,133");
                           break;
          
               case 5: Console.WriteLine(" Capital of Spain is Madrid");
                              Console.WriteLine(" Population of Spain is 46,064,604");
                           break;
              
               case 6:Environment.Exit(0);
                       break;
              
               default:
                   Console.WriteLine(" enter a valid choice");
                   break;
           }
       }

   }
}
          


C# CODE FOR PROGRAM 2

using System;

//main class begins

class Program5
{
   //main method begins
   static void Main()
   {
       int sum=0;

       for(int i=5;i<=45;i++)
       {
           if (i==12 || i==25 || i==40)
               continue;
           else
           {
               sum+=i;
      
           }      

       }

       Console.WriteLine("The sum of numbers from 5 to 45 except 12,25 and 40 is "+sum);

   }
}

C# FOR PROGRAM 3

using System;

//main class begins

class Program5
{
   //main method begins
   static void Main()
   {
       Console.WriteLine("Enter the number of quantity for Item1 purchased");
       String s1=Console.ReadLine();

          
       Console.WriteLine("Enter the number of quantity for Item2 purchased");
       String s2=Console.ReadLine();


       int item1=Convert.ToInt32(s1);
       int item2=Convert.ToInt32(s2);


       double item1subtotal=item1 * 3.95;
       double item2subtotal=item2 * 2.50;

       double subtotal=item1subtotal + item2subtotal;

       double tax=0.098 * subtotal;

       double total=subtotal + tax;


       Console.WriteLine(" Subtotal for item1 " + item1subtotal);
       Console.WriteLine(" Subtotal for item2 " + item2subtotal);
       Console.WriteLine(" Subtotal " + subtotal);
       Console.WriteLine(" Tax " + tax);
       Console.WriteLine(" Total " + total);
      

   }
}


C# CODE FOR PROGRAM 4

using System;

//main class begins

class Program7
{
   //main method begins
   static void Main()
   {

       int attempt=0;

       Console.WriteLine("Which US president was born on July 4?");

       while(attempt<13)
       {

           attempt++;

           String answer=Console.ReadLine();

           answer=answer.ToLower();

           if(answer=="calvin coolidge")
           {
               Console.WriteLine("Congrats! --- You have answer is correct");          
               break;

           }
           else
           {
               Console.WriteLine("No You are wrong!");

           }


           if(attempt>5 && attempt <=10)
               {


                   Console.WriteLine("Hint: He once said, ‘if you don’t say anything, you won’t be called upon to repeat it.’");

               }

               else
               {


                   if(attempt>10)
                   {

                       Console.WriteLine("Hint: His nickname was ‘Silent Cal.’");
                   }
               }


           }

          
                  
           }

   }
      

       C# CODE FOR PROGRAM 5

using System;

//main class begins

class Program8
{
   //main method begins
   static void Main()
   {

       Console.WriteLine("Enter the value for M");
       String s1=Console.ReadLine();

       Console.WriteLine("Enter the value for N");
       String s2=Console.ReadLine();

       int m=Convert.ToInt32(s1);
       int n=Convert.ToInt32(s2);

       for(int i=0;i<m;i++)
       {
           for(int j=0;j<n;j++)
           {
               Console.Write("*");
           }
           Console.WriteLine();
       }

   }
}

C# CODE FOR PROGRAM 6

using System;

//main class begins

class Program8
{
   //main method begins
   static void Main()
   {

       double[] arr={-3.5,2.3,5.9,-6.9,-12.1,15.6,4.7,-3.8,-17.3,-11.4,12.6,19.9};


       Console.WriteLine("Before changing");
       for(int i=0;i<10;i++)
           Console.WriteLine(arr[i]);
       arr[4]=16.9;
       arr[9]=arr[9]-3.7;

       Console.WriteLine("After changing");
       for(int j=0;j<10;j++)
           Console.WriteLine(arr[j]);


   }
}