Java Scanner error at double value

Asked Sep 11 '16 at 08:27

Active Sep 11 '16 at 09:55

Viewed 15 times

import java.util.Scanner;
public class DoDo{
    public static void main(String[] args){
        Scanner in = new Scanner(System.in);
        System.out.println("give me value of a and b");
        double a = in.nextDouble();
        double b = in.nextDouble();
        double dod = a + b;
        System.out.println(dod);
    }

}

Hello. I started my adventure with java yesterday. I did this simple calc and when i'm giving value a for example 2.5 eclipse gives me this

Exception in thread "main" java.util.InputMismatchException
at java.util.Scanner.throwFor(Unknown Source)
at java.util.Scanner.next(Unknown Source)
at java.util.Scanner.nextDouble(Unknown Source)
at dodo.main(dodo.java:9)

I dont know what I'm doing wrong.

edited Sep 11 '16 at 09:55

Infamous

asked Sep 11 '16 at 08:27

Przemek Broda

1

Try to use comma , for double number instead of point . like 2,2 + 3,3 gives = 5.5 – Abdelhak Sep 11 '16 at 08:31
Thanks. I didnt know that in this case i have to use comma. – Przemek Broda Sep 11 '16 at 08:36
@Brodeon it depends on your default Locale as to whether it expects a period or comma. – Peter Lawrey Sep 11 '16 at 09:16

Java Scanner error at double value

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