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C# C# Objects Loops and Final Touches Constants

Xinyu (Sean) Zhang
PLUS
Xinyu (Sean) Zhang
Courses Plus Student 7,064 Points
Posted by Xinyu (Sean) Zhang
Xinyu (Sean) Zhang
Courses Plus Student 7,064 Points

What does it mean define const red? I have already done it! This is not very descriptive question!

Why?

CodeChallenge.cs 
const int revenue = 125000;
const int red = 100000;
const int yellow = 150000;
string status = null;

if (revenue < red)
{
    status = "red";
}
else if (revenue < yellow)
{
    status = "yellow";
}
else
{
    status = "green";
}

2 Answers

Edward Ries
Edward Ries
7,388 Points
Edward Ries
Edward Ries
7,388 Points

It's wanting you to remove the string literals from the code by placing them as const strings at the top.

const string red= "red";

Then in code you can reference:

status = red;

Steven Parker
Steven Parker
231,198 Points
Steven Parker
Steven Parker
231,198 Points

:x: He can't use the name red for the string because it's already assigned to the numeric value.

Edward Ries
Edward Ries
7,388 Points

Good catch there Steven. Time for bed for me. :)

Steven Parker
Steven Parker
231,198 Points
Steven Parker
Steven Parker
231,198 Points

:point_right: You're halfway there!

You have replaced all the numeric values with constants, so far, so good! :+1:

But now you need to the same thing with the string constants. For example for red you might have:

const string redColor = "red";

And then later, when the status is assigned, you might have:

    status = redColor ;

Do that for all the color names and you should have it.