Average Grade, Highest Grade and Lowest Grade in C#

 Machine Problem

Write a C# program that will input your grades in different subjects last year

and display the average grade, highest grade and lowest grade.

Sample Output:

Enter grade in English: 89

Enter grade in Math: 91

Enter grade in Filipino: 92

Enter grade in Science: 88

Average: 90

Lowest Grade: 88

Highest Grade:92

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using System;  


/* average.cs
   Author    : Jake Rodriguez Pomperada, MAED-IT, MIT
   Tools     : C# 
   Date      : September 27, 2022    Tuesday   3:58 PM
   Website   : www.jakerpomperada.com
   Email     : jakerpomperada@gmail.com
*/

public class average
{  
    public static void Main()  
{  
    int[] arr = new int[4]; 
   int i=0;
    int average = 0; 
    int total_grades = 0;  

       Console.Write("\n\n");
       Console.Write("\t---------------------------------------------------------");	
       Console.Write("\n\tAverage Grade, Highest Grade and Lowest Grade in C#\n");
       Console.Write("\t---------------------------------------------------------\n\n");	
  
    string[] subjects = new string[4];
        subjects[0] = "English";
        subjects[1] = "Math";
        subjects[2] = "Filipino";
        subjects[3] = "Science";
        
        
     for (i = 0; i < arr.Length; i++)
    {  
	    
            string element = subjects[i];
        Console.Write("\tEnter Grade in {0}     : ",element);
	    arr[i] = Convert.ToInt32(Console.ReadLine());  		
  
        total_grades+= arr[i];
        average = total_grades/4; 
    }

  int Highest_Grade = arr[0];
  int Lowest_Grade = arr[0];

    for(i=0; i<4; i++)
    {
        if(arr[i]> Highest_Grade)
        {
            Highest_Grade = arr[i];
        }


        if(arr[i]<Lowest_Grade)
        {
            Lowest_Grade = arr[i];
        }
       }
    
    Console.Write("\n");
    Console.Write("\tAverage        : {0}     \n",average);
    Console.Write("\tLowest  Grade  : {0}     \n",Lowest_Grade);
    Console.Write("\tHighest Grade  : {0}     \n",Highest_Grade);
    Console.Write("\n");	
    Console.Write("\tEnd of Program");	
    Console.Write("\n");	
  }
}