Clash Royale CLAN TAG#URR8PPP

how to right justify with $ character

I'm trying to right justify a value (float) with dollar sign. But I'm justifying the value not the dollar sign. So how can I justify the dollar sign as well.

println(f"$$$10.5340%40.2f")
$ 10.53


Thanks

5 Answers
5

Do it in two steps:

Something like that:

println(f"$f"$$$10.5340%.2f"%43s")


Result (total width independent of the number 10.5340):

10.5340

$10.53


Example with many different numbers:

for (n <- List(1234.567, 0.33, 1.0, 42.0, 45.2))
println(f"$f"$$$n%.2f"%43s")



Results in:

$1234.57
$0.33
$1.00
$42.00
$45.20


I hope it's a joke application - you aren't really counting real money using doubles, are you?

double

Here's one approach using string interpolation on java.text.NumberFormat.getCurrencyInstance:

import java.text.NumberFormat.getCurrencyInstance

val amount1 = f"$getCurrencyInstance.format(10.5340)%40s"
val amount2 = f"$getCurrencyInstance.format(100.5340)%40s"
val amount3 = f"$getCurrencyInstance.format(1000.5340)%40s"

// amount1: String = " $10.53"
// amount2: String = " $100.53"
// amount3: String = " $1,000.53"


In case it's the currency for a different country, say, France:

import java.util.Currency, Locale

val currInstance = getCurrencyInstance

currInstance.setCurrency( Currency.getInstance(new Locale("fr", "FR")) )

val amount4 = f"$currInstance.format(123.456)%40s"
// amount4: String = " EUR123.46"


Try this:

printf("%40c%.2f%n", '$', 10.5340)


for (n <- List(1234.567, 0.33, 1.0, 42.0, 45.2)) printf("%40c%.2f%n", '$', n)

If it's important that decimal places would align for any number (i.e. padding so that decimal dot is 40 characters from the left, and not padding with 40 characters regardless of number of digits), I can't see how this can be done directly with Scala's formatter - but it can be achieved with the help of Java's DecimalFormat:

DecimalFormat

scala> import java.text._;
import java.text._

scala> println(f"$new DecimalFormat("$###.##").format(10.5340)%40s")
$10.53

scala> println(f"$new DecimalFormat("$###.##").format(1000.5340)%40s")
$1000.53


Code :

println(f"$"$"%40s$10.5340%.2f")


Output :

$10.53

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