Code not running properly - Java

Question

Would you guys help me? Could anyone tell me why this code isn't working properly?

https://code.sololearn.com/cjEoeRi2LOm6

When it's run the following error shows up:

Enter first number:
Enter Second number:
Exception in thread "main" java.util.NoSuchElementException
at java.util.Scanner.throwFor(Unknown Source)
at java.util.Scanner.next(Unknown Source)
at java.util.Scanner.nextDouble(Unknown Source)
at apples.main(apples.java:10)

I couldn't figure it out

Answer 1

For Java on Code Playground you have to input everything at once when prompted.
Try putting numbers into the input box like this:
5
9.5

Answer will be 14.5. Which is correct.

Answer 2

It's working fine!