Could you find a problem with user's input in my code?

Question

Could you please find out what is the root of the problem with user's input in my code? I usually use Scanner for this purpose, yet, this particular code asks for input only once istead of twice, and I have no idea what has caused such a behaviour. (The code is running on NetBeans without errors, still, it ommits a line for inserting the second input)

https://code.sololearn.com/c63OFGDk6sDp/?ref=app

Answer 1

ZdzichPych
https://code.sololearn.com/c62Iddn7mJFH/?ref=app

I made a copy of your code to remove all white spaces in it. I think you copied it from your IDE and copied unwanted characters (looks like white spaces but gives compiler error)

* package recipe don't work (I don't know why)

* Input:
Recipe --> Enter
Product
fish Enter
fish
--> output: found fish

But I don't know what you expect if you input this:
fish, pommes, salad (enter)
fish

Only fish or the whole recipe?

Answer 2

How the SoloLearn compiler works, is the code is compiled on a server, and the input is only asked once at runtime, because it needs to send that to the server as input. But if you test it on a real Java compiler, it will work perfectly.

Answer 3

So product is just an empty string?

Answer 4

Yes. Thats why I made a copy for you without these spaces. See my post from 3.2.

https://code.sololearn.com/c62Iddn7mJFH/?ref=app

Answer 5

ZdzichPych no problem :)

Answer 6

Hmm... strange. I’m sorry, but I don’t know how to overcome that problem.

Answer 7

Denise, thank you very much for your time and help!

Answer 8

Rowsej, thank's for your answer! I apologise for not specifying the issue, the code is executed on NetBeans. It doesn't generate any errors, it just ommits the line String product = in.nextLine();

Answer 9

I want a user to write a product and then use this string, but it compiles as if there is no such line at all... As a result, while executing control statement, it shows that there is no such a product, so I think this is actually an empty string as you've said

Answer 10

Thank you all the same

Answer 11

Denise, thank you for your answer! Yes, I've copied it from NetBeans, it is a bit difficult for me to write codes on my phone with its small display, yet, copying leads to all that spaces. This code was just a sort of practising some String methods, that is why it is silly. However, I wanted a user to insert a recipe, then, any product, divide an entire string of recipe into steps, and show a user the steps in which this product is used

Answer 12

ZdzichPych I changed the split:
String[] steps = yourRecipe.split(" ");
Try my code to see if you get your expected output.

Answer 13

ZdzichPych on sololearn:
Enter the recipe: pepper salt whatever then push enter
enter your product
if the product is used in the recipe I get all products of the recipe.

Answer 14

Denise, thank you for yor suggestion. I'm afraid, it doesn't give right output. I've tried it on NetBeans and the line asking for a product still doesn't work. Additionaly, I suppose the code now gives the sentence "There is no such product..." the number of times equal to the number of sentences created by splitting.

Answer 15

Denise, thank you, I'll try it here

Answer 16

Denise, may be it is because of all those spaces, but I'm getting a compilation error on SoloLearn