C#•5mo ago

i want to assign the grades with the grade points how can i do that?

string[] grades = {"A+","A","A-","B+","B","B-","C+","C","C-","D+","D","F"};
float[] gradePoints = { 4.0f,4.0f,3.7f,3.3f,3,2.7f,2.3f,2,1.7f,1.3f,1,0 };

string[] grades = {"A+","A","A-","B+","B","B-","C+","C","C-","D+","D","F"};
float[] gradePoints = { 4.0f,4.0f,3.7f,3.3f,3,2.7f,2.3f,2,1.7f,1.3f,1,0 };

30 Replies

cjOP•5mo ago

example i want to assign A+ to 4.0

Sossenbinder•5mo ago

Sounds like you want a Dictionary<string, float>, right?

cjOP•5mo ago

what is best method to do that yeah how can i do that ?

Angius•5mo ago

Like any dictionary

var grades = new Dictionary<string, float>() {
    ["A+"] = 4.0,
    ["A"] = 4.0,
    ["A-"] = 3.7,
    // ...
}

var grades = new Dictionary<string, float>() {
    ["A+"] = 4.0,
    ["A"] = 4.0,
    ["A-"] = 3.7,
    // ...
}

Sossenbinder•5mo ago

var gradeMapping = new Dictionary<string, float>(){
    ["A+"] = 4.0f,
    ["A"] = 4.0f,
}

var gradeMapping = new Dictionary<string, float>(){
    ["A+"] = 4.0f,
    ["A"] = 4.0f,
}

Ah, beat me to it

cjOP•5mo ago

so i don't need the second array? because i can already assign it with this way right?

Angius•5mo ago

Yeah

Sossenbinder•5mo ago

Depends on whether you need access to an array of the potential grades outside of the dictionary lookup, but you could also get the Values of the dictionary in case you need that

MODiX•5mo ago

Angius

REPL Result: Success

var grades = new Dictionary<string, float>() {
    ["A+"] = 4.0f,
    ["A"] = 4.0f,
    ["A-"] = 3.7f,
    // ...
};

grades["A"]

var grades = new Dictionary<string, float>() {
    ["A+"] = 4.0f,
    ["A"] = 4.0f,
    ["A-"] = 3.7f,
    // ...
};

grades["A"]

Result: float

Compile: 301.948ms | Execution: 31.578ms | React with ❌ to remove this embed.

cjOP•5mo ago

nice

Hannsen•5mo ago

Have a look at https://learn.microsoft.com/en-us/dotnet/api/system.linq.enumerable.zip?view=net-8.0 maybe it is also suitable for you if you want to keep two value sources initially

Enumerable.Zip Method (System.Linq)

Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.

cjOP•5mo ago

string[] grades = {"A+","A","A-","B+","B","B-","C+","C","C-","D+","D","F"};

var grades = new Dictionary<string, float>()
{

    ["A+"]=4.0f,
    ["A"]=4.0f,
    ["A-"]=3.7f,
    ["B+"]=3.3f,
    ["B"]=3,
    ["B-"]=2.7f,
    ["C+"]=2.3f,
    ["C"]=2,
    ["C-"]=1.7f,
    ["D+"]=1.3f,
    ["D"]=1,
    ["F"]=0,
};
grades["B+"];

           

Console.ReadLine();

string[] grades = {"A+","A","A-","B+","B","B-","C+","C","C-","D+","D","F"};

var grades = new Dictionary<string, float>()
{

    ["A+"]=4.0f,
    ["A"]=4.0f,
    ["A-"]=3.7f,
    ["B+"]=3.3f,
    ["B"]=3,
    ["B-"]=2.7f,
    ["C+"]=2.3f,
    ["C"]=2,
    ["C-"]=1.7f,
    ["D+"]=1.3f,
    ["D"]=1,
    ["F"]=0,
};
grades["B+"];

           

Console.ReadLine();

what is wrong here?

cjOP•5mo ago

Sossenbinder•5mo ago

- You're reusing the variable name "grades", that's not valid C# - The grades["B+"]; is a noop, you are not using it for anything

cjOP•5mo ago

i want to display it it doesn't

Console.WriteLine(grades["B+"]);

Console.WriteLine(grades["B+"]);

Sossenbinder•5mo ago

I think what you want to do is, removing or renaming either the array or the dictionary, removing the grades["B+"] line, read the input and then look up the result and output it again Ah, or that

cjOP•5mo ago

mayybe yeah

Sossenbinder•5mo ago

I mean I could just drop you the code but we can also step through Did you remove the string[] grades for now? Or do you still need it for your sample?

cjOP•5mo ago

nvm i amm so stupid xd

  string[] grades = {"A+","A","A-","B+","B","B-","C+","C","C-","D+","D","F"};

  var grade = new Dictionary<string, float>()
  {

      ["A+"]=4.0f,
      ["A"]=4.0f,
      ["A-"]=3.7f,
      ["B+"]=3.3f,
      ["B"]=3,
      ["B-"]=2.7f,
      ["C+"]=2.3f,
      ["C"]=2,
      ["C-"]=1.7f,
      ["D+"]=1.3f,
      ["D"]=1,
      ["F"]=0,
  };
  

 

  Console.WriteLine(grade["B+"]);
  Console.ReadLine();

  string[] grades = {"A+","A","A-","B+","B","B-","C+","C","C-","D+","D","F"};

  var grade = new Dictionary<string, float>()
  {

      ["A+"]=4.0f,
      ["A"]=4.0f,
      ["A-"]=3.7f,
      ["B+"]=3.3f,
      ["B"]=3,
      ["B-"]=2.7f,
      ["C+"]=2.3f,
      ["C"]=2,
      ["C-"]=1.7f,
      ["D+"]=1.3f,
      ["D"]=1,
      ["F"]=0,
  };
  

 

  Console.WriteLine(grade["B+"]);
  Console.ReadLine();

it worked

Sossenbinder•5mo ago

Nice 👍

cjOP•5mo ago

i can remove the string array now i don't need it so i want to read the grade

 var grade = new Dictionary<string, float>()
 {

     ["A+"]=4.0f,
     ["A"]=4.0f,
     ["A-"]=3.7f,
     ["B+"]=3.3f,
     ["B"]=3,
     ["B-"]=2.7f,
     ["C+"]=2.3f,
     ["C"]=2,
     ["C-"]=1.7f,
     ["D+"]=1.3f,
     ["D"]=1,
     ["F"]=0,
 };

 

          
 Console.ReadLine(grade);
 Console.WriteLine(grade);

 var grade = new Dictionary<string, float>()
 {

     ["A+"]=4.0f,
     ["A"]=4.0f,
     ["A-"]=3.7f,
     ["B+"]=3.3f,
     ["B"]=3,
     ["B-"]=2.7f,
     ["C+"]=2.3f,
     ["C"]=2,
     ["C-"]=1.7f,
     ["D+"]=1.3f,
     ["D"]=1,
     ["F"]=0,
 };

 

          
 Console.ReadLine(grade);
 Console.WriteLine(grade);

cjOP•5mo ago

 string v = Console.ReadLine(grade);

 string v = Console.ReadLine(grade);

even if i did this

Angius•5mo ago

Console.ReadLine() does not take any arguments You want to use it to take user input Then use that input to look up the grade Then write that grade out

cjOP•5mo ago

            grade = Console.ReadLine();


            Console.WriteLine(grade);

            grade = Console.ReadLine();


            Console.WriteLine(grade);

Angius•5mo ago

Not whatsoever, no

cjOP•5mo ago

i got it ngl i asked chatgpt

Unknown User•5mo ago

Message Not Public

cjOP•5mo ago

i don't use it to generate code i use it to explain errors and bugs

Unknown User•5mo ago

Message Not Public

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i want to assign the grades with the grade points how can i do that?