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We'll learn about floating-point types.
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We've only got one field left
to parse in our CSV file.
0:00
Let's take a look.
0:03
Possession percent.
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We can see that it has some
values here with decimal points.
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We will need to use a floating
point type with this field.
0:13
Let's talk a little bit about
the floating point types.
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I'll bring up the C#
interactive window again.
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C# interactive, there are three
floating point types in C#.
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Float, double, and decimal.
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Double is the default in C#, and
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is usually the one you'll choose
when you need a floating point type.
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var myNumber = 12.50.
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If we hover over the myNumber
0:45
variable here, you can see the Visual
Studio is inferring that it's a double.
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The float type is a little less common.
0:56
Floats have a smaller size and
lower precision than other numbers.
0:59
Only use it if you really
care about memory and
1:02
don't really care about rounding errors or
precision.
1:05
The third type, the decimal,
is a super precise floating point type.
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It's best used to represent currency and
1:14
other types of financial transactions
because it's really precise.
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But it also takes up more memory
than the other floating point types.
1:20
If we need to assign a number
literal to a float variable or
1:24
a decimal variable,
we need to use a suffix.
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Let's try it without it.
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Float, my float equals 12.
1:31
Yeah I didn't like that,
1:38
says we need to use an F suffix
to create a literal of this type.
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Let's try it with the suffix.
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float myFloat = 12.50F.
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There we go.
1:56
So the same thing goes with the decimal.
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decimal myDecimal = 12.50;.
2:00
Nope.
2:06
It wants an M as the suffix.
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decimal .myDecimal
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= 1250M;.
2:20
And that works.
2:25
So which do you think would be the best
for a position percent property?
2:27
I don't think it will
need to be super precise.
2:31
A double is our fallback option and
it should work just fine.
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public double
2:37
PossessionPercent.
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Now we can parse the values with
another try parse method on double.
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Double possessionPercent;.
2:58
And if (double.TryParse(values[7],
3:01
out possessionPercent)) and
we're up to 7 now,
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then gameResult.PossessionPercent
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= possessionPercent;.
3:20
Now let's debug again and
see our progress.
3:24
F5.
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Looking good.
3:42
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