扫描双精度不适用于try-catch

Question

here's my code:

public static void setPriority(List<Performer> listperformer)
 {
  Scanner localsc = new Scanner(System.in);
  if(listperformer.isEmpty() == true)
  {
   System.out.println("- empty -");
   return;
  }
  else
  {
   System.out.println("ID:");
   int id = localsc.nextInt();
   if(listperformer.size() < id || id < 0)
   {
    System.out.println("Invalid input!");
    return;
   }
   else
   {
    double priority = 1.0;
    try{
     System.out.println("Priority:");
     priority = localsc.nextDouble();
     listperformer.get(id).setPriority(priority);

    }catch(InputMismatchException e)
    {
     System.err.println("Invalid input!");
    }

   }
  }

When I want to scan something like 2,7 it works, but if i put instead of the comma a dot, it leads to the "Invalid input!" output.

Answer 1

check if you need to use US locale

Scanner localsc = new Scanner(System.in);
localsc.useLocale(Locale.US);