Sep 14, 2015 · That means you would close System.in if you closed your scanner. I recommend setting your scanner variable to null, and letting the garbage collector remove it from the heap. Unless you …

Oct 7, 2014 · I read the Oracle documentation on the Scanner class and came across this: When a Scanner is closed, it will close its input source if the source implements the Closeable interface. …

Apr 25, 2015 · Exception in thread "main" java.util.NoSuchElementException: No line found at java.util.Scanner.nextLine(Unknown Source) at main.learn.input(learn.java:25) at …

You can check if the user entered an empty by checking if the length is 0, additionally you can close the scanner implicitly by using it in a try-with-resources statement:

Jan 3, 2013 · I have a Scanner linked to System.in. Now, after using the Scanner, I should close it, as it is bad coding practice to leave it open. But, if I close the Scanner, I will also be closing System.in! ...

Feb 14, 2020 · I started learning JAVA a couple of days ago, so my question might be too basic. I have created a piece of code which is as follows: import java.util.Scanner; public class Que01 { public st...

Jul 22, 2017 · You should close the Scanner after you're done using it. That sample has you closing at the end of the loop, so it tries to check for more data in the while condition and fails.

Apr 2, 2018 · ¿Cómo cierra un Scanner en Java? Formulada hace 7 años y 8 meses Modificada hace 7 años y 8 meses Vista 11k veces

6 According to the Javadoc of Scanner, it closes the stream when you call it's close method. Generally speaking, the code that creates a resource is also responsible for closing it. System.in was not …

Mar 28, 2017 · The java.util.Scanner.close() method closes this scanner.If this scanner has not yet been closed then if its underlying readable also implements the Closeable interface then the readable's …