1.Write a console program to accept student of 3 subject marks they are m1, m2, and m3 and calculate 3 subjects’ total marks and average marks and display to the user? And display the result?
Answer:-
If any one subject he got <35 his result is fail.
If student got average marks>=60 First class
If student got average marks>=50 and < 60 Second class
If student got average marks >=35 and <50 3rd class
Sol:-By using if else if and switch case.
If else if :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace _1
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("enter student name:");
string sname = Console.ReadLine();
Console.WriteLine("enter m1 marks");
int m1 = int.Parse(Console.ReadLine());
Console.WriteLine("enter m2 marks");
int m2 = int.Parse(Console.ReadLine());
Console.WriteLine("enter m3 marks");
int m3 = int.Parse(Console.ReadLine());
int tot = m1 + m2 + m3;
int avg = tot / 3;
Console.WriteLine("avg is" + avg);
if(m1<35||m2<35||m3<35)
{
Console.WriteLine("student " + sname + " is fail");
}
else if (avg >= 60)
{
Console.WriteLine("student "+sname + " having first class");
}
else if (50 <= avg && avg<60)
{
Console.WriteLine("student "+sname + " having second class");
}
else
{
Console.WriteLine("student "+sname+" having third class");
}
Console.ReadLine();
}
}
}
Switch case:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace average
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("enter student name:");
string sname = Console.ReadLine();
Console.WriteLine("enter m1 marks");
int m1 = int.Parse(Console.ReadLine());
Console.WriteLine("enter m2 marks");
int m2 = int.Parse(Console.ReadLine());
Console.WriteLine("enter m3 marks");
int m3 = int.Parse(Console.ReadLine());
int tot = m1 + m2 + m3;
int avg = tot / 3;
Console.WriteLine("avg is" + avg);
switch (m1<35||m2<35||m3<35)
{
case true:
Console.WriteLine("student" + sname + " is fail");
break;
case false:
switch(avg>=35&&avg<50)
{
case true:
Console.WriteLine("student "+sname+"having third class");
break;
case false:
switch (avg >=50&&avg< 60)
{
case true:
Console.WriteLine("student"+sname+" having second class");
break;
case false:
Console.WriteLine("student"+sname+" having first class");
break;
}
break;
}
break;
}
Console.ReadLine();
}
}
}
Output:-
