Scanner skipping-bypassing second input.

Question

Why is my Scanner by-passing the the second input?
Code is part of a larger project...so this code is just to explain the issue I have..

Scanner input = new Scanner(System.in);
int myint = input.nextInt();
System.out.println(myint);

String mystring = input.nextLine(); // <why is this line....
System.out.println(mystring); // and this line being skipped?

Answer 1

rodwynnejones Hello,
Can you share your code with us.
On SL, the input works differently. You must enter everything before running the code. For example,

Enter a number and the string into separate lines:

2019
hello

Than press SUBMIT

Answer 2

Martin Taylor is correct.

As a suggestion, instead of adding an extra input.nextLine() call, using something like int myInt = Integer.parseInt(input.nextLine()) will likely express the intention more clearly, rather than having a reader think "why is there this random call here, is it a bug?"

Answer 3

Hi.
Tried it both in an IDE and code playground (and i an aware of the playground input method). If i do mystring.next()...it works fine, but that only allows me to input one "word" but I want to input a "phrase".
The only way I got round in was to do two Scanner object e.g
Scanner int_input = new Scanner(System.in);
Scanner str_input = new Scanner(System.in);
but I'm sure I should be able to do it using one.

Answer 4

Not sure if this link will work.. but here goes.
I've commented out the workaround i did to actually get it to work and put in the code that was causing the "issue".
https://code.sololearn.com/c3X5T5dnjPYh/#java

Answer 5

ah.... o.k thank you everyone who replied, I did think it had something to do with "something left in the buffer", I just didn't know how to "clear it". With your suggestion it now work as intended.
(I see now why python was invented, LOL).