With that input, your program is reading the final "printAll", then "del" as the order number, then "4.9" as a double, then it tries to use nextDouble to read the final "printAll" and fails. The order "del" should be followed by two doubles.
Reading doubles from a .txt file
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13-06-2023 - |
Pregunta
I'm trying to read a .txt file which has a line of 3 elements, the first being a string such as "tri" and then the next two are doubles like 2.3 and 4.2. The problem is, I keep getting a compiler error when I try to read the next double. If anyone can help me out I would greatly appreciate it. This is my problematic code:
if(order.equals("printAll"))
{
printAll();
if(textReader.hasNext())
{
order = textReader.next();
if(textReader.hasNextDouble())
{
dimension1 = textReader.nextDouble();
dimension2 = textReader.nextDouble(); <---**this line**
}
}
}
The line I pointed at keeps giving me the error:
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 arrayDrawer.main(arrayDrawer.java:88)
Line 88 being the line I pointed to. Sorry if it's vague, I will post more of my code if need be. Any help would be greatly appreciated.
Input for the program:
rec 4.2 4.0
tri 4.9 9.3
tri 2.1 9.9
compAreaAll
printAll
del 4.9
printAll
Solución
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