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MY FIRST EVER PROJECTS MADE IN C#
- Thread starter Junior
- Start date
Nokia said:
I don't even get what you're trying to say, these are things I coded in C# for a class I'm doing.
Hassam said:
I'm a beginner so it took me about 3 hours just to make these, the calculations for the buttons are a bitch.
Odus said:
Obviously there's code, I had to input the features of what the buttons do and the calculations.
Code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Student_Grade_Processor
{
public partial class GradeProcessor : Form
{
public GradeProcessor()
{
InitializeComponent();
}
// calculates the average grade, letter grade, and quiz dropped
private void btnCalculate_Click(object sender, EventArgs e)
{
double quiz1; // quiz number one grade
double quiz2; // quiz number two grade
double quiz3; // quiz number three grade
double midTerms; // midterm exam grade
double finals; // final exam score grade
double courseGrades; // quiz number one grade
quiz1 = Convert.ToDouble(textBox1.Text);
quiz2 = Convert.ToDouble(textBox2.Text);
quiz3 = Convert.ToDouble(textBox3.Text);
midTerms = Convert.ToDouble(textBox4.Text);
finals = Convert.ToDouble(textBox5.Text);
double[] quizScores = { quiz1, quiz2, quiz3 };
// determines lowest score out of the quizzes
double lowestScore = quizScores.Min();
string quizDropped = "";
if (lowestScore == quiz1)
{
quizDropped = "#1";
}
else if (lowestScore == quiz2)
{
quizDropped = "#2";
}
else
{
quizDropped = "#3";
}
double quizGrades = (((quiz1 + quiz2 + quiz3) - lowestScore) / 2); // calculates average quiz grade
courseGrades = ((quizGrades * 0.3) + (midTerms * 0.3) + (finals * 0.4)); // calculates the total grade of all quizzes and exams
// assigns a letter grade depending on the grade
char letterGrade = 'X';
if (courseGrades > 89)
{
letterGrade = 'A';
}
else if (courseGrades > 79)
{
letterGrade = 'B';
}
else if (courseGrades > 69)
{
letterGrade = 'C';
}
else if (courseGrades > 59)
{
letterGrade = 'D';
}
else if (courseGrades < 59)
{
letterGrade = 'F';
}
// the following displays the results from the calculations
lblAverage.Text = Convert.ToString(courseGrades); // displays the course average
lblLetter.Text = Convert.ToString(letterGrade); // displays a letter grade depending on the course average
lblDroppedQuiz.Text = Convert.ToString(quizDropped); // displays which quiz was dropped out of the 3
}
}
}This is the code for the Student Grade Processor I made.
If the grades aren't floating point (1.2345...) i.e whole then don't use double, use int (shortened from: 'integer').
There's no need to call from the System.Convert namespace when you have .ToString() method at your disposal within .NET which if I'm not mistaken, calls it once more.
Initialize your variables to avoid null reference exceptions.
Speaking of initializing, don't initialize string types with "", use String.Empty. Empty quotes creates an object in memory, the latter doesn't.
Swap out your cascading elseif on the courseGrades operand to a switch statement. Cleaner and (depending on var density, sometimes faster albeit miniscule)
Novice mistakes so no worries. Since you're on HF anyway (I'm sure), I suggest you post it there in future if you want feedback, few can offer it here plus like you said: this section is dead. I'm there too if you need help and want to PM me.
There's no need to call from the System.Convert namespace when you have .ToString() method at your disposal within .NET which if I'm not mistaken, calls it once more.
Initialize your variables to avoid null reference exceptions.
Speaking of initializing, don't initialize string types with "", use String.Empty. Empty quotes creates an object in memory, the latter doesn't.
Swap out your cascading elseif on the courseGrades operand to a switch statement. Cleaner and (depending on var density, sometimes faster albeit miniscule)
Novice mistakes so no worries. Since you're on HF anyway (I'm sure), I suggest you post it there in future if you want feedback, few can offer it here plus like you said: this section is dead. I'm there too if you need help and want to PM me.
This is actually a very good start for you. The interface looks fairly decent and I'm guessing it works? 
Anyway, you should proceed on expanding! Make more applications like a web browser, database, or program that stores business client information.
Anyway, you should proceed on expanding! Make more applications like a web browser, database, or program that stores business client information.
well first of all, if this is his first program ever, he should most definitely post the source so people can give tips and what not.Naughty said:
And I'm not complaining just stating buddy, and I hardly read comments why would I.
