countess luann dating a jew - Validating java
The keyboard Scanner accepts any string so it would not break on error, but then tries to convert it to the proper type using “is Type” method.
The class methods accept user input as string, attempt to convert that input to the expected type.
If the conversion was successful, the method returns the result in the correct type.
An example of using this code in your program can be something like: In the case above, the system will repeatedly ask “Please type your ID number” until the user inserts a proper integer value.
If the user types anything else, the loop will return an error message and repeat the request.
Method Argument Not Valid Exception; import org.bind.annotation.