I need to create a String using the Formater to display some double float values. I'm not clear on how to code it. Here is what I have:
Double dWeightInKg = 100;
Double dWeightInLbs = 220:
String headerText = String.format("%.0f kg / %.0f lbs",Double.toString(dWeightInKg) , Double.toString(dWeightInLbs));
I'm looking for the following output:
100 kg / 220 lbs
I get a runtimeexception - badArgumentType(formater) on my String.format line.
%.0f is the format string for a float, with 0 decimal places.
The values you're passing to String.format are String, String when it needs to be Double, Double.
You do not need to convert the doubles to strings.
String headerText = String.format("%.0f kg / %.0f lbs", dWeightInKg, dWeightInLbs);
String.format(). Avoiding this hint may lead to bugs in your application. More info here: developer.android.com/reference/java/util/…This should work,
DecimalFormat df = new DecimalFormat("#.##");
private String convertToFormat(double value){
return df.format(value);
}
You don't need the Double.ToString() since your formatter is already expecting a number. Try this:
String headerText = String.format("%.0f kg / %.0f lbs", dWeightInKg , dWeightInLbs);
