how to check whether a variable contain double or empty value using java in android

Question

how to check wheather the variable containing double value or empty

?? i am getting response from web services which i have stored in 3 different different variable say for example

var1=some double value var2= some double value and var 3=some double value

now how to check var1,var2 and var3 wheather they really contain double value or integer value ??? this is my question

Thanks in advance

Please Clarify your question and place some relevant code so It'll be easier for us to help you. — Jaydeep Khamar, May 02 '11 at 13:47
Please add some clarification: Do you have a string and you want to know if the string contains a valid double such as 2.56? Or, do you have a list and you want to know if it has duplicates values? — Sarel Botha, May 02 '11 at 13:48

score 1 · Answer 1 · answered Feb 15 '12 at 06:41

1

Try this:

Double d = 1.2;
if(Double.compare(d,Double.NaN)==0) {
  Log.i("TEST", "Double is NaN");
} else {
  Log.i("TEST", "Double is not NaN");
}

answered Feb 15 '12 at 06:41

straya

1 Answers1