kotlin格式数字用逗号

Question

I'm pretty new to kotlin and would like to know how to format a number with commas.

Currently, my textview shows a number without any commas, ie, 15000. I want it to show 15,000 instead.

Here's my code that I want to format:

  txtTotalActive.text = it.statewise[0].active

"it.statewise[0].active" is an object that shows number but as I said, it shows without any commas.

Answer 1

Solution:

            var inoutValue = it.statewise[0].active
            val number = java.lang.Double.valueOf(inoutValue)
            val dec = DecimalFormat("#,###,###")
            val finalOutput = dec.format(number)

            txtTotalActive.text = finalOutput

Answer 2

"%,.2f".format(text.toFloat()) <,> = grouping, 2 = precision/number of decimals after "."