Why Am I Getting 'InputMismatchException' When Inputting Double Values?

Troubleshooting "InputMismatchException" During Double Input

In your code, it seems you're employing Scanner.nextDouble() to gather user input for double values. However, you've noticed that entering double input isn't possible, and you're receiving an "InputMismatchException." Here's how to rectify this situation:

Consider the input format:

num = reader.nextDouble(); 

In the majority of locales, double-precision floating-point numbers are typically formatted with a decimal point "." (dot). But the Scanner.nextDouble() method expects a comma "," as the decimal separator. This discrepancy could result in your program failing to parse the user's input as a double value.

To fix this, make sure that you use a comma when inputting the numbers, like:

1,2

instead of:

1.2

By adhering to the proper decimal separator, your program will be able to accurately parse and process double values from the user's input. This should resolve the "InputMismatchException" issue you were encountering.

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