/** Adding grades to the grade book*/
private static void EnterGrades(IBook book)
{
// Add grade to the grades book from user
Console.WriteLine($"Enter the grades for {book.Name} grade book. Letter Grades allowed are A, B, C, D and F. Press Q to discontinue:");
do
{
try
{
var input = Console.ReadLine();
double grade;
char letter;
//Parses grade to double or character
if (double.TryParse(input, out grade))
{
book.AddGrade(grade);
}
else if (char.TryParse(input, out letter) && !char.Equals(letter, 'Q'))
{
book.AddGrade(letter);
}
// break the loop if user enters Q
else if (char.TryParse(input, out letter) && char.Equals(letter, 'Q'))
{
break;
}
// requests user to enter a valid grade
else
{
throw new FormatException($"Please enter a {nameof(grade)} of type double or char:");
}
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
Console.WriteLine("_______________________________________________");
}
} while (true);
}
private static void AddGrade(IBook book, string input)
{
if (double.TryParse(input, out double grade))
{
book.AddGrade(grade);
}
else if (input.Length == 1)
{
book.AddGrade(input[0]);
}
else
{
throw new ArgumentException($"ERROR: Invalid grade '{input}'. Enter a value between 0 and 100, or a letter from A to D, or F.");
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.WriteLine("Enter a grade or 'q' to quit");
var input = Console.ReadLine();
if (input == "q")
{
break;
}
try
{
var grade = double.Parse(input);
book.AddGrade(grade);
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
finally
{
Console.WriteLine("**");
}
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.WriteLine("Please enter grade: (press 'q' when done)");
var input = Console.ReadLine();
if (input == "q")
{
break;
}
try
{
var grade = double.Parse(input);
book.AddGrade(grade);
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
var input = Console.ReadLine();
if (input == "q")
{
break;
}
try
{
book.AddGrade(double.Parse(input));
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
finally
{
// code runs everytime
}
}
}
private static void EnterGrade(IBook book)
{
while (true)
{
Console.WriteLine("Podaj ocenę lub podaj 'q' aby wyjść: ");
var userInput = Console.ReadLine();
if (userInput == "q")
{
break;
}
try //próbujemy wykonać kod zawarty w tym bloku w przypadku błędu wykorzystywana jest klauzula catch
{
var grade = double.Parse(userInput);
book.AddGrade(grade);
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
finally //zawsze wykonywane niezależnie od wyjątku np gdy chcemy zamknąć plik
{
Console.WriteLine("**");
}
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
System.Console.Write("Enter the grades (Press Q to quit): ");
var input = Console.ReadLine();
if (input.ToUpper().Equals("Q"))
{
System.Console.WriteLine("=======================\n");
break;
}
try
{
var grade = double.Parse(input);
book.AddGrade(grade);
// System.Console.WriteLine($"Grade ({grade}) added to the book!\n");
}
catch (ArgumentException ex)
{
System.Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
System.Console.WriteLine(ex.Message);
}
finally
{
System.Console.WriteLine("Enter another grade");
}
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.WriteLine("Please enter a grade or q to quit and compute.");
var userInput = Console.ReadLine();
if (userInput == "q")
{
break;
}
try
{
var grade = double.Parse(userInput);
book.AddGrade(grade);
}
catch (ArgumentException invalidGradeException)
{
Console.WriteLine(invalidGradeException.Message);
}
catch (FormatException invalidFormatException)
{
Console.WriteLine(invalidFormatException.Message);
}
/*finally{
* Console.WriteLine("*****");//This will run no matter what
* }*/
}
;
}
private static string EnterGrades(IBook book)
{
string input;
do
{
Console.WriteLine("Enter a new grade. To finish enter 'q'");
input = Console.ReadLine().ToLower();
try
{
var grade = double.Parse(input);
book.AddGrade(grade);
}
catch (FormatException e)
{
Console.WriteLine(e.Message);
if (input != "q")
{
Console.WriteLine($"You did not provide a proper grade: '{input}");
}
}
catch (ArgumentException)
{
Console.WriteLine($"The provided grade is not within an acceptable range(0-100) {input}");
}
} while (input != "q");
return(input);
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.WriteLine("enter a grade or enter character q to quit");
var input = Console.ReadLine();
if (input == "q")
{
break;
}
try
{
var grade = double.Parse(input);
book.AddGrade(grade);
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
finally
{
// .. properly clean things up even if there was an exception.
}
}
;
}
private static void EnterGrades(IBook book)
{
string inputGrade;
do
{
Console.WriteLine("Type a grade or press \"Q\" to quit and show statistics");
inputGrade = Console.ReadLine().ToLower();
if (inputGrade == "q")
{
continue;
}
try
{
var grade = double.Parse(inputGrade);
book.AddGrade(grade);
}
catch (ArgumentException e)
{
Console.WriteLine(e.Message);
}
catch (FormatException e)
{
Console.WriteLine(e.Message);
}
} while (inputGrade != "q");
}
private static void EnterGrade(IBook book)
{
// grade input loop
var done = false;
while (!done)
{
Console.WriteLine("Enter a grade or 'q' to quit");
var input = Console.ReadLine();
if (input == "q")
{
done = true;
continue;
}
try
{
double grade = double.Parse(input);
book.AddGrade(grade);
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
finally
{
// always runs after try block even with errors
Console.WriteLine("**");
}
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.WriteLine("Please Enter a grade or 'q' to quit:");
String grade = Console.ReadLine();
if (grade.Length == 0 || grade.Equals("q", StringComparison.InvariantCultureIgnoreCase))
{
break;
}
try
{
double gd = double.Parse(grade);
book.AddGrade(gd);
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
finally
{
// the block of code that needs to be executed regardless what happens in the try-catch blocks
// usually things like closing the file or the DB connection are placed here
Console.WriteLine("**");
}
}
}
private static void EnterGrade(IBook book)
{
while (true)
{
Console.WriteLine("Please enter the grade or press q to see the statistics");
var value = Console.ReadLine();
if (value == "q")
{
break;
}
try
{
book.AddGrade(double.Parse(value))
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
}
}
private static bool EnterGrade(IBook book, bool done)
{
while (!done)
{
Console.WriteLine("Enter a grade or enter char q to quit: ");
var input = Console.ReadLine();
if (input == "q")
{
done = true;
continue;
}
try {
var grade = double.Parse(input);
book.AddGrade(grade);
}
catch (ArgumentException err) {
Console.WriteLine(err.Message);
}
catch (FormatException err) {
Console.WriteLine(err.Message);
}
finally {
Console.WriteLine("**");
}
}
return(done);
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.Write("Please a Grade between 0 and 100 (or \"q\" to end entry) : ");
string input = Console.ReadLine();
if (input.ToLower().Equals("q"))
{
break;
}
try
{
var grade = double.Parse(input);
book.AddGrade(grade);
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
}
}
// This is polymorphic and will change depending on the type of book we recieve
private static bool EnterGrades(IBook book, bool done)
{
while (!done)
{
Console.Write("Enter grade or 'q' to quit-->");
var input = Console.ReadLine();
if (input == "q")
{
done = true;
continue;
}
try
{
var grade = double.Parse(input);
book.AddGrade(grade);
}
catch (ArgumentException ex)
{
Console.WriteLine($"Error was recieved {ex.Message}");
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
finally
{
Console.WriteLine("Runs after exceptions");
}
}
;
return(done);
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.WriteLine("Please enter a grade or 'q' to quit");
var input = Console.ReadLine();
if (input == "q")
{
break;
}
try
{
var grade = double.Parse(input);
book.AddGrade(grade);
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
// Exception can be logged and rethrown
// throw;
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
finally
{
// Any code here will be alwasy executed even if an exception is thrown
// Close file or close network socket etc, even if an exception happened.
Console.WriteLine("**");
}
}
}
private static void EnterGrades(IBook book)
{
var input = "";
while (input != "q")
{
Console.Write("Please enter a grade or q to quit: ");
input = Console.ReadLine();
if (double.TryParse(input, out var result))
{
try
{
book.AddGrade(result);
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
finally
{
Console.WriteLine("***");
}
}
else
{
Console.WriteLine("Invalid input");
}
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.WriteLine("Enter a grade or 'q' to quit");
var input = Console.ReadLine();
if (input == "q")
{
break;
}
try
{
var grade = double.Parse(input);
if (grade <= 100 && grade >= 0)
{
book.AddGrade(grade);
}
else
{
throw new ArgumentException($"Invalid {nameof(grade)}");
}
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.WriteLine("Please enter a grade or hit 'q' to exit...");
var input = Console.ReadLine();
if (input == "q")
{
break;
}
try
{
var grade = double.Parse(input);
book.AddGrade(grade);
}
catch (ArgumentException ex)
{
System.Console.WriteLine(ex.Message);
//throw;
}
catch (FormatException ex)
{
System.Console.WriteLine(ex.Message);
}
//this is if you want a block of code to ALWAYS execute
finally
{
System.Console.WriteLine("I can do this! (determined!)");
}
}
// book.AddGrade(96.7);
// book.AddGrade(74.7);
// book.AddGrade(89.2);
}
private static string EnterGrades(IBook book)
{
string input;
while (true)
{
Console.WriteLine("Enter a grade or 'q' to quit...");
input = Console.ReadLine();
if (input == "q")
{
break;
}
try
{
book.AddGrade(double.Parse(input));
Console.WriteLine(book);
}
catch (ArgumentException e)
{
Console.WriteLine(e.Message);
}
catch (FormatException e)
{
Console.WriteLine(e.Message);
}
finally
{
Console.WriteLine("**");
}
}
return(input);
}
private static void EnterGrade(IBook book)
{
var done = false;
while (!done)
{
Console.WriteLine("Enter a grade or 'q' to quit");
var input = Console.ReadLine();
if (input == "q")
{
done = true;
continue;
}
try
{
var grade = double.Parse(input);
book.AddGrade(grade);
}
catch (ArgumentException e)
{
Console.WriteLine(e.Message);
}
catch (FormatException e)
{
Console.WriteLine(e.Message);
}
}
}
private static void EnterGrades(IBook book)
{
Console.WriteLine("Please enter the grades. Press 'Q' to quit and display results.");
while (true)
{
var input = Console.ReadLine();
if (input.Equals("Q"))
{
break;
}
try
{
var inputGrade = double.Parse(input);
book.AddGrade(inputGrade);
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
} //to rethrow the exception we can write throw; below Console.WriteLine statement, this could be done if we didn't know the exception type
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
finally //a piece of block which always executes irrespective of any exceptions
{
Console.WriteLine("*");
}
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.WriteLine("Please put a grade, or \"q\" to exit.");
var input = Console.ReadLine();
if (input == "q")
{
break;
}
try
{
// Will throw an exception when given different format
// that cannot be converted to double type
var grade = double.Parse(input);
// WIll throw an exception when grade is invalid - see method for more info
book.AddGrade(grade);
}
catch (ArgumentException e)
{
Console.WriteLine(e.Message);
}
catch (FormatException e)
{
Console.WriteLine(e.Message);
}
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
System.Console.WriteLine("Enter a grade or q to quit.");
var input = Console.ReadLine();
if (input == "q")
{
break;
}
try
{
var grade = double.Parse(input);;
book.AddGrade(grade);
}
catch (ArgumentException ex)
{
System.Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
System.Console.WriteLine(ex.Message);
}
finally
{
//..could handle clean up etc
}
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.WriteLine("Enter a grade or 'q' to quit:");
var response = Console.ReadLine();
if (response != null && !string.Equals(response.ToLower(), "q"))
{
try
{
var parsedResponse = double.Parse(response);
book.AddGrade(parsedResponse);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
Console.WriteLine("**");
}
}
else
{
break;
}
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.WriteLine("Enter Grade or Enter q to quit:");
var input = Console.ReadLine();
if (input == "q")
{
break;
}
//Error Handling
try
{
var grade = double.Parse(input);
book.AddGrade(grade);
}
//Write this separate catch statements to be able to catch only specifi errors
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.WriteLine("Enter a Grade or Enter a 'Q' to quit");
var input = Console.ReadLine();
if (input == "Q")
{
Console.WriteLine("You just Quit, Thank you");
break;
}
try
{
var grade = double.Parse(input);
book.AddGrade(grade);
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (FormatException ex)
{
Console.WriteLine(ex.Message);
}
// finally
// {
// Console.WriteLine("**");
// }
}
}
private static void EnterGrades(IBook book)
{
while (true)
{
Console.WriteLine("Enter grade or enter \"q\" to finish");
var input = Console.ReadLine();
if (input != "q")
{
try
{
double grade = double.Parse(input);
book.AddGrade(grade);
}
catch (ArgumentException e)
{
Console.WriteLine(e.Message);
}
catch (FormatException e)
{
Console.WriteLine(e.Message);
}
finally
{
// close a network socket or something if needed at this point
}
}
else
{
break;
}
}
}