check if double/float has more than 2 decimal number

Asked Mar 28 '19 at 16:37

Active Mar 28 '19 at 17:59

Viewed 63 times

i want to make a check in my app. If the double entered by the user has more decimals throw a popup to the user. Here is my code i tried many combinations but no one works

String bigStart = etVehicleMileageAtStartTour.getText().toString(),
      bigEnd = etVehicleMileageAtEndTour.getText().toString();
 if ((bigStart.indexOf(".") >= 0 && bigStart.indexOf(".") > bigStart.length() - 2)
 || (bigEnd.indexOf(".") >= 0 && bigEnd.indexOf(".") > bigEnd.length() - 2)) 

{
 // throw popup
}

I tried also to convert to big decimal and use scale method but it is not working

BigDecimal bigAtStart = BigDecimal.valueOf(vehiculeMileageAtStart);
BigDecimal bigAtEnd = BigDecimal.valueOf(vehiculeMileageAtEnd);
int i = bigAtEnd.scale();
int j = bigAtStart.scale();
if (bigAtEnd.scale() > 99 || bigAtStart.scale() > 99) {
}

Thanks in advance.

edited Mar 28 '19 at 17:59

Dr Mido

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asked Mar 28 '19 at 16:37

Houssein Zouari

What does `etVehicleMileageAtStartTour.getText().toString()` actually return? – Steve Smith Mar 28 '19 at 16:48
@SteveSmith it is returning decimal numbers. like "12.01" – Houssein Zouari Mar 28 '19 at 16:50
3

Get the number of decimal places with something like `bigStart.split("\\.")[1].length()`. – Steve Smith Mar 28 '19 at 16:55
1

@SteveSmith it works thanks man :D – Houssein Zouari Mar 28 '19 at 17:01
In the BigDecimal version I would have compared `scale()` to 2, not 99. – Patricia Shanahan Mar 31 '19 at 01:29

check if double/float has more than 2 decimal number

0 Answers0