How to convert int to double in java?

Question

how

Answer 1

Herrmann is right.
Upcasting is no problem, be careful at downcasting. For more information just search for these tags on Google.

Answer 2

You can't convert an integer to a double. Just think about it. You can go the other way around, but not from int to double.

Answer 3

You dont need to convert them explicitly because double is bigger than int. This is xalled implicit type conversion. If you want you could also write double d =Double.valueOf (YOUR INT); but you can write double d =YOUR INT too;