Computer Programming Learning Part-08||Project-01||Calculating grade points with C++ programs.

Steemian Friends,
Today, I will write Computer Programming Learning Part 08. I will create some small projects with C++ programs. Today, I will write a C++ program to get students' grade results. Hopefully, everyone who reads my writing will be able to create a program to calculate grades using C++.

Design By Canva

I first write the C++ program on white paper because it is convenient to write on the computer. If I make a mistake while writing on paper, I can correct it while writing on the computer.

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Step 01:

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I first open the computer and the Code Blocks software. Then I click on File. Then I click on Empty File from New File. Then, I see a code-writing page, shown as a red block in the image below.

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Step 02:

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Then, I declared the C++ program's header file and main function. Every C++ program must first declare these. Below, I have declared the header file and main function.

#include < iostream>
#include<conio.h>
Using namespace std;

int main()
{
}

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Step 03:

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Then, I will create my main program. I will declare an integer variable to generate the student's result grade. Then, I wrote code to store the result. I have written it below.

int mark;
Cout<<"Enter Mark:";
Cin>>Mark;

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Step 04:

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Then, I used a condition called if. If there are more than 100 marks, this condition will show an Invalid Mark result. I have written it below.

if(Mark>100)
{
Cout<<"Invalid Mark";
}

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Step 05:

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Then I used another condition called if else. If you get marks less than zero through this condition, it will show an Invalid Mark. I have written it below.

else if(Mark<0)
{
Cout<<"Invalid Mark";
}

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Step 06:

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Then I use the else if condition: if I get more than or equal to 80 marks, then it will show A+ as output. I have written it below.

else if(Mark>=80)
{
Cout<<"A+";
}

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Step 07:

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Then again, I used a condition that will show an A grade result if marks are equal to or above 70. I have written it below.

else if(Mark>=70)
{
Cout<<"A";
}

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Step 08:

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Then, I applied another condition, which will show an A-grade result if marks are equal to or above 60. I have written it below.

else if(Mark>=60)
{
Cout<<"A-";
}

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Step 09:

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Then, I applied another condition, which will show a B grade result if marks are equal to or above 50. I have written it below.

else if(Mark>=50)
{
Cout<<"B";
}

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Step 10:

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Then, I applied another condition, which will show a C grade result if marks are equal to or above 40. I have written it below.

else if(Mark>=40)
{
Cout<<"C";
}

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Step 11:

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Then, I applied another condition, which would show a D grade result if marks were equal to or above 33. I have written it below.

else if(Mark>=33)
{
Cout<<"D";
}

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Step 12:

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Then, I applied a condition: marks below 33 will show the result as Fail. I have written it below.

else
{
Cout<<"Fail";
}

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Step 13:

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Then I click the Run option and see the program's output. There was an error in writing my program, which I fixed. Then, a black page appears to view the output. Here, I type 70 and click enter. I see my desired result, an A grade. I have shown it in the red block below.

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Program Output:

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I am very happy to see the program's output. You can also create such a program by writing my program step by step.

Link to my previous post:

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