Question

C# Programming Language

Write a C# program ( Console or GUI ) that prompts the user to enter the three examinations ( test 1, test 2, and test 3), homework, and final project grades then calculate and display the overall grade along with a message, using the selection structure (if/else). The message is based on the following criteria:

• “Excellent” if the overall grade is 90 or more.
• “Good” if the overall grade is between 80 and 90 ( not including 90)
• “Above Average” is the overall grade is between 70 and 80 ( not including 80)
• “Average” if the overall grade is between 60 and 70 ( not including 70)
• "Poor" if the overall grade is less than 60 ( not including 60)

Answer 1

using System;
class HelloWorld {
  static void Main() {
      double test1,test2,test3,homework,finalproject,finalgrade;
    Console.WriteLine("Enter test 1 grade mark");
    test1= Convert.ToDouble(Console.ReadLine());
    Console.WriteLine("Enter test 2 grade mark");
    test2= Convert.ToDouble(Console.ReadLine());
    Console.WriteLine("Enter test 3 grade mark");
    test3= Convert.ToDouble(Console.ReadLine());
    Console.WriteLine("Enter homework grade mark");
    homework= Convert.ToDouble(Console.ReadLine());
    Console.WriteLine("Enter finalproject grade mark");
    finalproject= Convert.ToDouble(Console.ReadLine());
    finalgrade=(test1+test2+test3+homework+finalproject)/5;
    if (finalgrade >= 90) 
    {
       Console.WriteLine("Excellent");
    } 
    else if (80<= finalgrade && finalgrade< 90) 
    {
       Console.WriteLine("Good");
    } 
    else if(70<= finalgrade && finalgrade <80)
    {
       Console.WriteLine("Above Average");
    }
    else if(60<= finalgrade && finalgrade <70)
    {
       Console.WriteLine("Average");
    }
    else if(finalgrade <60)
    {
       Console.WriteLine("Poor");
    }
    
  }
}