Question

I do

 Collections.frequency(List<String>, List<String>.get(i)) / List<String>.size()

The output for the above calculation should be (for example)

0.00631
0.0002378
0.00571

but I get 0.0, instead.
How do I handle this? I keep getting 0.0 with double and float

Thanks

Answer 1

If the values 0.00631, 0.0002378 and 0.00571 are expected results from divisions, make sure you’re not doing integer divisions. That is, make sure to cast numerator or denominator to float or double.

Instead of

double fraction = someInt / someOtherInt;

you can do

double fraction = (double) someInt / someOtherInt;

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In your particular case, you could try something like

(double) Collections.frequency(list, list.get(i)) / list.size();