This is the homework question....
For all elements in the List letterGrades a. If the element at index i is equal to grade, then increment noOfGrades by 1. This comparison should happen regardless of case, i.e., for p/P/f/F.
This is what i have so far....
/*
* Calculate letter grades as P for Pass and F for Fail based on the marks obtained.
* Find the number of instances with the given grades.
*/
namespace Ex1
{
public partial class LetterGrade : Form
{
// Initialize string List
public List letterGrades = new List();
public LetterGrade()
{
InitializeComponent();
}
private void submitButton_Click(object sender, EventArgs e)
{
double marks = double.Parse(marksTextbox.Text); //Declare variable marks and set
// If statements for marks
if (marks>0 && marks<=60)
{
letterGrades.Add("F");
}
else if (marks>60 && marks<=100)
{
letterGrades.Add("P");
}
else
{
MessageBox.Show("Not a valid marks");
}
marksTextbox.Clear();
}
private void calculateButton_Click(object sender, EventArgs e)
{
string grade = letterGradeTextbox.Text; // initialize string grade
int noOfGrades = 0;
for (int i = 0; i < letterGrades.Count; i++)
{
if (grade == "P" || grade == "p") //Problem here, step 7a...could not initialize using [i]..tried using a workaround but it keeps total count..
{
noOfGrades++;
}
else if (grade == "F" || grade == "f")
{
noOfGrades++;
}
}
letterGradeTextbox.Clear();
MessageBox.Show("Number of instances with given letter grade is: " + noOfGrades);
}
}
}
I have no clue how to proceed any one that can point me int he right direction?
Raghav JhavarPosted Dec 13, 2015, 5:37 AM
string someString = "454";
int someInt = Convert.ToInt32(someString);
The above is possible because "454" is a number.
But you cannot convert letters to numbers! "p/P/f/F" cannot be converted to a number!
Kody SnowPosted Dec 7, 2015, 1:32 AM
Manas MohapatraPosted Dec 7, 2015, 1:20 AM
Kody SnowPosted Dec 7, 2015, 1:18 AM
Manas MohapatraPosted Dec 7, 2015, 1:15 AM
Kody SnowPosted Dec 7, 2015, 1:12 AM
Manas MohapatraPosted Dec 7, 2015, 1:08 AM
Kody SnowPosted Dec 7, 2015, 1:00 AM
Manas MohapatraPosted Dec 7, 2015, 12:47 AM