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android – Format number using decimal format in kotlin

Posted by: admin June 15, 2020 Leave a comment

Questions:

I am facing an issue where I need to do some calculations with a number like for example 5000,00 multiplied it by (1,025^3).

So in this case 5000,00 * (1,025^3) = 5385,45

So my question is, how can I format the number 5385,45 to be like 5.385,45 using decimal format maybe?

I tried by myself and I did this piece of code that outputs 5385,45 in the app but not 5.385,45

    var interestValue = (5000,00*(Math.pow(1.025,yearValue)))
    val number = java.lang.Double.valueOf(interestValue)
    val dec = DecimalFormat("#,00")
    val credits = dec.format(number)
    vValueInterest.text = credits
How to&Answers:

This is the format you need:

val dec = DecimalFormat("#,

Answer:

.##")

will print:

5.384,45

if you need always exactly 2 digits after the decimal point:

val dec = DecimalFormat("#,

Answer:

.00")

Answer:

val num = 1.34567
val df = DecimalFormat("#.##")
df.roundingMode = RoundingMode.CEILING

println(df.format(num))

When you run the program, the output will be:
1.34

Check:
https://www.programiz.com/kotlin-programming/examples/round-number-decimal

Answer:

Try val dec = DecimalFormat("#.

Answer:

,00"). For examples of DecimalFormat check this link.