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1. Write a loop that will read in a series of even numbers from the console (suc

ID: 3834549 • Letter: 1

Question

1. Write a loop that will read in a series of even numbers from the console (such as 2, -4, 8, 6) and compute the total of the numbers in the sequence. The series is ended with a sentinel value that is any odd number.   Print the result for your user.

2.  Write a FOR loop that will calculate and return the sum of all the odd numbers in [0, 1000].  Print the result after the loop is finished.

3.  Write a loop that will generate and display 10 random numbers in [1, 50].  Output all of the randomly generated numbers.

4. Write a nested loop that asks the user for symbol (store in a char) and a number. The loop should output a rectangle (or square) of the character that is of the height and width of the number. E.g., if I input 4 and *, I would get:

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(C# Language)

Explanation / Answer

1.

using System;

public class Test
{
   public static void Main()
   {
        int num;
        int sum = 0;
       Console.WriteLine("Enter even numbers to add .Enter odd number to stop");
       do
       {
            num = Convert.ToInt32(Console.ReadLine());
            if(num % 2 != 0)
            break;
            else
          
           sum = sum+ num;
          
       }while(num % 2 ==0);
      
       Console.WriteLine(" The sum of even numbers = "+ sum);
   }
}


output:

Enter even numbers to add .Enter odd number to stop

2

-4

8

6

7

The sum of even numbers = 12

2.

using System;

public class Test
{
   public static void Main()
   {
        int sum = 0;
      
        for(int i=0;i<=1000;i++)
        {
           if(i%2 != 0)
           sum = sum+i;
        }
      
       Console.WriteLine(" The sum of odd numbers between 0 and 1000 = "+ sum);
   }
}


Output:

The sum of odd numbers between 0 and 1000 = 250000

3.

using System;

public class Test
{
   public static void Main()
   {
        int num;
        Random r = new Random();
      
        for(int i=0;i<=10;i++)
        {
           num = r.Next(1,50);
      
       Console.WriteLine(num);
        }
   }
}


Output:

16                                                                                                                                                     

13                                                                                                                                                     

25                                                                                                                                                     

41                                                                                                                                                     

38                                                                                                                                                     

45                                                                                                                                                     

3                                                                                                                                                      

38                                                                                                                                                     

34                                                                                                                                                     

31                                                                                                                                                     

22  

4.

using System;

public class Test
{
   public static void Main()
   {
        Console.WriteLine("Enter the symbol and number");
        char symbol = Convert.ToChar(Console.ReadLine());
        int num = Convert.ToInt32(Console.ReadLine());
      
        for(int i=0;i<num;i++)
        {
        for(int j=0;j<num;j++)
        {
            Console.Write(symbol);
        }
        Console.WriteLine();
        }
   }
}


output:

Enter the symbol and number

* 4

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****

****