<How to add thousands separator for calculator app...

# stackoverflow

[user]

How to add thousands separator for calculator app. KOTLIN
I have a calculator app and I want it to show large numbers with spaces between them when users enter their input. Currently, they don't have spaces between them like this: 10000; 100000; 1000000. I want them to show like this: 10 000; 100 000; 1 000 000. The second one looks much neater.
Here is my code
class CalculatorActivity : AppCompatActivity() {

@Suppress("PrivatePropertyName")
private var DigitOnScreen = StringBuilder(12)
private var operation: Char = ' '
private var leftHandSide:...