InputMismatchException at java.util.Scanner.nextDouble

Asked Apr 15 '19 at 15:13

Active Apr 15 '19 at 15:15

Viewed 212 times

I am doing some small pratice using java language and stuck with these:

import java.util.Scanner;
public class nhap {
    public static void main (String[] args)
    {
        Scanner sc = new Scanner(System.in);
        double n;
        n= sc.nextDouble();
        System.out.println(1.0/n);
    }
}

when I try to enter a number of type double . It shows me this error:

0.56
Exception in thread "main" java.util.InputMismatchException
    at java.base/java.util.Scanner.throwFor(Unknown Source)
    at java.base/java.util.Scanner.next(Unknown Source)
    at java.base/java.util.Scanner.nextDouble(Unknown Source)
    at nhap.nhap.main(nhap.java:10)

I'm looking for some advice that help me solve this problem :)

edited Apr 15 '19 at 15:15

asked Apr 15 '19 at 15:13

TamTam

2

You haven't shown your input, but it clearly doesn't contain something that can be read as a double. – Andy Turner Apr 15 '19 at 15:14
thanks, I updated my question – TamTam Apr 15 '19 at 15:16
Answer https://stackoverflow.com/a/21143523/4592448 =) – Fortran Apr 15 '19 at 15:21
Are you using the correct `Locale`? Try inputting `0,56` or changing the locale to something like `new Scanner().useLocale(java.util.Locale.US)` – TNT Apr 15 '19 at 15:22
thanks guys 0,56 worked for me :) – TamTam Apr 15 '19 at 15:26

InputMismatchException at java.util.Scanner.nextDouble

0 Answers0