C# Answers

Write a program to calculate the area of a circle and display the reuslt. Use the formula: a=πr^2 where Pi is approximately equal to 3.1416

fill in the correct line of code

 const int PASS = 50;

    int numPass = 0, numFail = 0, totalMarks = 0;

    double mark, perPass = 0, perFail = 0;

    } while (mark > 100);

    // if the inputted mark is not the sentinel value, process it

    while (mark >= 0)

    {

      // increment the counter for the total number of data values

      // *** Insert code

      // Determine if the mark is a pass or fail (If statement)

      // *** Insert code

      // Read next mark

      // *** Insert code

    }

    // Calculate the percentage of marks that were passes and fails

    // *** Insert code

q1) fill in the required code line where //*** insert code is

 const int PASS = 50;

    int numPass = 0, numFail = 0, totalMarks = 0;

    double mark, perPass = 0, perFail = 0;

  while (mark >= 0)

    {

      // increment the counter for the total number of data values

      // *** Insert code

      // Determine if the mark is a pass or fail (If statement)

      // *** Insert code

      // Read next mark

      // *** Insert code

    }

    // Calculate the percentage of marks that were passes and fails

    // *** Insert code

        // Calculate average (only if the user inputted any numbers
        if (count > 0)
            average = sum / (double) count;
        else
            average = 0;

Create your own code to add to the original program, after Line 30. The code you add should display whether the total number of values entered by the user (count)=(4), is small

(< 5) or large (>= 5). Use an If/Else statement.

1.     Define abstract class Shape with only one virtual method CalculateSurface() and fields width and height. Define two new classes Triangle and Rectangle that implement the virtual method and return the surface of the figure (height*width for rectangle and height*width/2 for triangle). Define class Circle and suitable constructor so that on initialization height must be kept equal to width and implement the CalculateSurface() method. Write a program that tests the behavior of the CalculateSurface() method for different shapes (Circle, Rectangle, Triangle) stored in an array.

Choose your desired operation

[CIRCUMFERANCE OF A CIRCLE]

[PERIMITER OF A TRIANGLE]

Hello,

In datagridview, how do I create rows and columns programmatically? I'm trying to create a Spreadsheet.

column a - z

row 1 - 50

Thank you.